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A decisive week of European football on BT Sport: What to watch out for on Matchday 5
Chelsea host Italian giants Juventus, while Lionel Messi is set to meet his former mentor Pep Guardiola when Paris Saint-Germain visit Manchester City, plus much more from a sensational round of European action.
We have reached the penultimate round of group games in European football's three tournaments and there's plenty still to be decided...
With some huge clashes from the Champions League, Europa League and Europa Conference League - and all nine British sides in with a shout of advancing - here is your rundown of what to look out for from Matchday 5.
Tuesday 23 November
We begin with two 5.45pm kick-offs featuring two genuine giants of the game - Manchester United and Bayern Munich.
Ole Gunnar Solskjaer's Man United have been bailed out in the Champions League by late Cristiano Ronaldo goals three times in their four games thus far.
The Portuguese superstar's goals secured dramatic wins over Villarreal, Atalanta before a stunning equaliser last time out salvaged a draw against the Italians.
Now in a watertight Group F, Solskjaer will hope United won't have to rely on the competition's all-time top scorer to down Villarreal in another repeat of last season's Europa League final. A win would almost seal qualification for the last 16.
The other 5.45pm kick-off comes from Ukraine where Bayern Munich are looking to make it five wins from five against Dynamo Kiev.
The German champions have been unstoppable this term - scoring 17 times and conceding just twice - and will fancy their chances against a Kiev side who've collected a solitary point in their four games so far.
Holders Chelsea's home tie against Juventus is a real glamour tie from the 8pm kick-offs that follow, as Thomas Tuchel's men look to peg back the Italians in top spot.
The Blues tasted defeat to Juve in Turin but are unbeaten on home soil and will hope to down a side who are struggling for form in Serie A.
Elsewhere Barcelona can steal a march on Benfica and all-but seal qualification for the knockouts with a win over the Portuguese side at Camp Nou.
Young Boys of Bern and Atalanta are in action with the Italians hoping to react to what Man United and Villarreal manage in Spain, while elsewhere in Chelsea's group basement boys Zenit and Malmo meet in Sweden.
There's also two intriguing clashes from a wide-open Group G where Sevilla meet Wolfsburg at the Ramon Pizjuan and Lille host RB Salzburg in north-west France. All four sides are in with a shout of making the last 16.
Wednesday 24 November
Wednesday's action begins at the alien kick-off time of 3.30pm with a tantalising Europa League tie between Spartak Moscow and Napoli.
The Italians have been outstanding in Serie A this season but despite sitting top of Europa League Group C, they are far from assured of a spot in the knockout stages.
The two 5.45pm kick-offs from the Champions League on Wednesday involve two matches which will have huge ramifications for who makes the last 16.
In Turkey, Ajax can book a place in the knockout stages by defeating Besiktas while Inter can take a big step towards the last 16 with victory over Shakhtar in Milan.
The 8pm matches are headlined by a heavyweight tie at the Etihad where Manchester City play host to Paris Saint-Germain in another battle of last season's semi-finalists.
With both teams in good positions to qualify, this will be a battle for who finishes top and PSG will hope to have Lionel Messi ready to take on his former coach Pep Guardiola.
It promises to be another memorable Anfield night meanwhile when Liverpool meet Porto on Merseyside, with top spot already sealed in Group B.
The Reds have a remarkable record against the Portuguese giants and dismantled their hosts 5-1 at the Estadio do Dragao earlier in the competition.
Elsewhere in Group B, there's a pivotal clash between Atletico Madrid and AC Milan at the Wanda Metropolitano.
Diego Simeone's side are a point off second-placed Porto having escaped from Milan with a fortunate win, while the Italians desperately need a result to keep their slim hopes of qualification intact.
The two other sides in Man City's group - Club Brugge and RB Leipzig - meet in Belgium to likely determine who will drop into the Europa League, while Real Madrid visit Moldova for the first time looking to avenge their shock defeat to Sheriff on home turf.
And finally, with both teams on six points and sitting six points behind leaders Ajax, it looks to be a straight shootout between Sporting and Borussia Dortmund to determine who extends their stay in the competition.
Thursday 25 November
It's a veritable bonanza of European football this Thursday with no fewer than 31 matches spread across three kick-off times and two competitions - the Europa League and inaugural Europa Conference League.
Two exotic 3.30pm kick-offs from the Europa Conference League begin the action as Flora host Partizan Belgrade in Estonia and Kairat take on Basel in Kazakhstan.
There's plenty of British interest in the 5.45pm Europa League kick-offs where already-qualified West Ham visit Rapid Wien in the Austrian capital.
Celtic however have plenty of work to do to make the last 16 and face a daunting task in visiting a Bayer Leverkusen team who sit top with 10 points from four matches.
The same kick-off time also features the continuation of Tottenham's Europa Conference League campaign when Spurs visit Slovenian minnows NS Mura hoping to take a big step towards the last 16.
The 8pm clashes from the Europa League are potentially decisive too, as Leicester play host to Legia Warsaw at the King Power Stadium hoping to leapfrog the Polish side into the qualification places.
At the same time, Rangers begin European life under Giovanni van Bronckhorst with a huge clash at home to Sparta Prague. A win over the Czech side would put Rangers in the driver's seat for qualification.
There's also an opportunity for Jose Mourinho's Roma to go top of Europa Conference League Group C when they play host to Ukrainians Zorya Luhansk at the Stadio Olimpico.
Plus, of course, much much more. Check out all the fixtures on BT Sport's What's On page with a whole host of the matches available as digital exclusives.