This week sees the return of the Champions League group stages, with three huge games to mark it's return. Barcelona take on Celtic at the Camp Nou, with Barca looking to put Saturday's shock defeat behind them. PSG host Arsenal at the Parc des Princes in a huge opening match for Arsenal. Finally Pep Guardiola's Manchester City take on Borussia Monchengladbach at the Etihad Stadium.
Barcelona vs Celtic – Tuesday 13th September 2016 – 19:45 - BT Sport
Barcelona welcome Celtic to the Camp Nou, in the first round of matches from this season's Champions League group stage games .
The Catalans lost their last game in La Liga at the weekend, in a shock 2-1 defeat against Alaves at home.
They produced a poor home performance, with their home record normally exemplary but to be defeated by the newly promoted Alaves has been the shock result of the weekend.
Luis Enrique will be looking to put that result immediately behind them, with a dominant opening performance in this match the minimum requirement now.
Great Season So Far
Barcelona started the season in excellent fashion, with a 6-2 opening win at home against Real Betis to kick off the season.
They followed that up with a narrow 1-0 win away against Athletic Bilbao, with Ivan Rakitic's goal in the 21st minute enough to win the match.
Enrique and his men will have been deeply disappointed, failing to win at home and falling three points behind Real Madrid.
Barcelona will be looking to continue their excellent recent record against Celtic, they have won the last two matches in the Champions League.
Response Needed From Barcelona
The match against Celtic sees Barcelona emerge as overwhelming favourites, with the defeat at the weekend meaning they will be even more determined to win and win well.
Barcelona won the pre-season fixture against the Bhoys, with a 3-1 win in the International Champions Cup.
Catalans Barcelona will be looking to maintain their excellent overall record against Celtic. They have won 6, drawn 2 and lost 2 of their 10 meetings.
Barcelona are 1/12 with Luis Suarez the favourite to score first at 2/1.
Celtic have had an excellent start to life under Brendan Rodgers this season, with four wins from their opening four matches.
After the miserable season they endured in Europe last year, Celtic will be looking to put an improved performance in this season.
They come into this match on the back of a 5-1 win against Rangers at the weekend, with midfielder Scott Brown dubbing it men against boys.
It was a dominant performance from Celtic, with the Bhoys scoring two late goals to complete an emphatic scoreline.
New signing Moussa Dembele's hatrick will have delighted the manager, particularly with Leigh Griffiths injured.
European Progress The Target
Celtic's main challenge will be to progress in Europe, in light of Rangers' absence from the Premier League they have been totally dominant domestically.
The clubs marker this season will be to compete in the Champions League, even if they fail to qualify for the last 16, a third-placed finish will be considered progress.
They find themselves in a very tough group, with Barcelona, Manchester City and Borussia Monchengladbach.
Brendon Rodgers will have to produce far better performances than the ones against Astana and Hapoel Beer Sheva.
Barcelona Heavy Favourites
Celtic come into this match as underdogs but this could work in their favour, it could allow them the freedom to express themselves.
Camp Nou is a tough place to go and Barcelona rarely lose at home, particularly in the Champions League.
Having beaten Rangers so convincingly and coming into this match in red-hot form, there is not a better time for them to be playing Barcelona.
This will be their toughest fixture of the season by far, with Barcelona unlike anything they would have faced in Scotland.
Celtic will be looking to register their first win against the Catalans since 2012, with goals from Victor Wanyama and Tony Watt securing an incredible win.
Celtic are 25/1 with Leigh Griffiths at 12/1 to open the scoring.
Paris St Germain vs Arsenal – Tuesday 13th September 2016 – 19:45 - BT Sport
Paris St Germain welcome Barcelona to the Parc des Princes, in the first round of matches from this season's Champions League group stage games .
PSG drew their last game in Ligue 1 at the weekend, in a 1-1 draw against St Etienne at home.
It was a dominant home performance, with their home record exemplary last year but sloppy defending cost them in the 92nd minute.
They took the lead through a Lucas Moura penalty, after Blaise Matuidi was brought down in the box in the 67th minute.
A last-gasp goal from Slovenia striker Robert Beric denied PSG the chance to return to the top of Ligue 1.
Mixed Season So Far
New coach Unai Emery will be looking to put that result immediately behind them, with a dominant opening performance in this match the minimum requirement now.
Paris St Germain have enjoyed a mixed start in the league, already losing 3-1 to Monaco, in a league that they dominated last season.
They find themselves in fourth position in Ligue 1, with two wins, a draw and a defeat and they will be looking for great consistency in the coming months.
Former Sevilla coach Emery will be looking for a first win in his first match in charge of the club, with European dominance top of the French clubs list.
PSG have yet to face Arsenal in the Champions League, they have faced Chelsea several times and were beaten by Manchester City in last season's competition.
Response Needed From PSG
The match against Arsenal sees PSG emerge as favourites, with the draw at the weekend meaning they will be even more determined to win and win well.
French Champions PSG failed to lose at home in last season's campaign, despite hosting Real Madrid, Chelsea and Manchester City at the Parc des Princes.
PSG will be looking to better their overall record against English opposition, with defeats against Manchester City and Chelsea in recent seasons.
PSG are 17/20 with Edinson Cavani at 4/1 to open the scoring.
Arsenal had a difficult start to life in the Premier League this season, with a surprise 4-3 defeat against Liverpool.
They have since gone unbeaten with two wins and a draw, giving Arsene Wenger some much-needed breathing space in the face of criticism after the opening defeat.
They endured a miserable season in Europe last year, Arsenal will be looking to put a much-improved performance in this season.
They come into this match on the back of a 2-1 win against Southampton at the weekend, with a dubious late penalty decision helping the Gunners.
It was a good performance from Arsenal, with the Gunners going 1-0 down early courtesy of a Petr Cech own goal.
An excellent overhead kick from Laurent Koscielny levelled the scoring, with Santi Cazorla scoring the winning goal from the spot in the 94th minute.
European Progress The Target
Arsenal have two huge challenges this season, to compete both domestically and in Europe, a feat that they have regularly failed to achieve.
The clubs marker this season will be to compete in the Champions League, in seasons gone by finishing runners-up has hampered their progress.
In seasons gone by they have been dumped out of the competition by Bayern Munich, with Barcelona their conquerors again last year.
They find themselves in an easier group, with PSG, FC Basel and FC Ludogrets and if they can produce results against PSG they have every chance of finishing top of Group A.
Arsene Wenger will be hoping they enjoy a much better start than last season, with defeats against Dinamo Zagreb and Olympiacos in their first two games.
Paris St Germain Favourites
Arsenal come into this match as underdogs but their record against French clubs is excellent, it is a league Wenger will know all about.
The Parc des Princes has been a fortress for PSG, they did not lose a game in the entire 2015/16 campaign.
Arsenal come into this match in good form and with the weight of results behind them, this will be their toughest fixture of the season though.
Arsenal are 3/1 with Olivier Giroud at 7/1 to score first.
Manchester City vs Borussia Monchengladbach Odds – Tuesday 13th September 2016 – 19:45 - BT Sport
Manchester City welcome Borussia Monchengladbach to the Etihad Stadium, in the first round of matches from this season's Champions League group stage games .
Manchester City won their huge match against Manchester United in the Premier League at the weekend, with a dominant 2-1 win at Old Trafford.
It was a dominant opening performance, with City steamrolling the United defence in the fist 40 minutes, if Aguero had played it could have been a cricket score.
They took the lead through a Kevin de Bruyne strike, after a flick on through Aguero's replacement Kelechi Iheanacho.
Iheanacho then beat the offside trap to coolly slot past David de Gea, with a Kevin de Bruyne strike rebounding off the bar straight into the strikers' path.
Incredible Season So Far
New coach Pep Guardiola will be looking to continue their excellent form, they are yet to drop a point under the Spaniard this season.
The Champions League is where City will target improvement, with Manuel Pellegrini and his side reaching the semi-finals of the tournament last season.
They find themselves on top of the Premier League on 12 points, with only Chelsea able to match their excellent start this season.
Manchester City qualified for the group stages after hammering Steaua Bucharest over two legs.
They beat the Romanian side 5-0 away and that effectively allowed them to play an under par side for the return leg, which saw them win 1-0.
City and Gladbach are no strangers having played each other last season, with City winning both of those games as well.
Same Again For Pep
The match against Borussia Monchengladbach sees Manchester City emerge as favourites, with their excellent form this season and last season's double contributing.
Guardiola and his side face a tough challenge in Group C, with Barcelona, Celtic and Borussia Monchengladbach competing for the last 16 places.
Pep will be looking for City to continue their excellent record against Monchengladbach, with two wins from two matches in last season's competition.
Man City are 4/9 with Sergio Aguero at 11/4 to open the scoring.
Borussia Monchengladbach have enjoyed a mixed start to the Bundesliga season, with a win and a defeat from their opening two matches.
They enjoyed an excellent opening day win, with a 2-1 victory against Bayer Leverkusen at home.
Gladbach followed that up with a 3-1 defeat away at Freiburg at the weekend, this despite Eden Hazard's brother Throgan opening the scoring.
Three second half goals including two in the last ten minutes cost them victory and slightly flattered Freiburg.
Tough European Group
Borussia Monchengladbach have two huge challenges this season, to compete both domestically and in Europe.
The clubs marker this season will be to compete in the Champions League, in last season they suffered in another strong group.
Last season they were placed in a group with Manchester City, Juventus and three-time Europa League winners Sevilla.
They won just one game in that group, they will be targeting a much more successful campaign this season.
With Manchester City, Barcelona and Celtic in their group progression to the last 16 is looking unlikely, they could realistically target a third-placed finish though.
Manchester City Favourites
Borussia Monchengladbach come into this match as underdogs but that could play into their hands, with nothing to lose they could produce an excellent performance.
Manchester City have been dominant this season, in the reverse fixture last year City won 4-2 at the Etihad.
Gladbach come into this match in mixed form but this fixture against Guardiola and City will be their toughest yet.
Monchengladbach are 5/1 with Raffael Caetano at 7/1 to score first.
Tip 1: Suarez to score first @ 2/1 and Barcelona to win 5-1 @ 18/1
Tip 2: Cavani to score first @ 4/1 and PSG to win 2-1 @ 7/1
Tip 3: Aguero to score first @ 11/4 and City to win 3-1 @ 9/1