Champions League 2019/20 season preview: Club-by-club guide, matchday dates, groups, team profiles

Champions League 2019/20 season preview includes club-by-club guide, matchday dates, groups and team profiles.

Neymar is the most important player for Paris Saint-Germain. They have never won the Champions League and have a history of choking.

Thomas Tuchel's team qualified for the Champions League as French League winners. They have never won the competition and have a history of choking. Neymar is their most important player.

Real Madrid won the Champions League last season. They are the most successful club in the tournament, having won it 13 times and three times consecutively under Zinedine Zidane. Eden Hazard is their most important player.

Zinedine Zidane is the manager of Real Madrid. They won the Champions League 13 times and three times consecutively under Zinedinedines. Eden Hazard is their most important player.

Hans Vanaken is the most important player for Club Brabag. They reached the quarter-final in 1977 and were defeated finalists the following season.

Philippe Clement is the manager of Belgian First Division A side. Hans Vanaken is their most important player. They reached the quarter-final in 1977 and were defeated finalists the following season.

Ryan Babel is the most important player for Turkish Super Lig champions Galatasaray. They have never won the Champions League but they have had European success with the 2000 UEFA Cup.

Ryan Babel is the most important player for Turkish Super Lig champions Fatih Terim. Terims have never won the Champions League but they have had European success with the 2000 UEFA Cup.

Bayern Munich won the Bundesliga this season. Niko Kovac is the manager. Robert Lewandowski is their most important player. Bayern have won five European Cups and one Cup Winners' Cup.

Bayern Munich won the Bundesliga this season. They have won Champions League five times and the UEFA Cup once. Robert Lewandowski is the most important player for them.

Harry Kane is the most important player for Tottenham Hotspur. Mauricio Pochettino's team finished fourth in the Premier League last season. Spurs have won the UEFA Cup twice and the Cup Winners' Cup once.

Ruben Semedo is the most important player for Olympiacos. They qualified for the Champions League after finishing runners-up in the Greek Superleague. Their closest European success is winning the Balkans Cup in 1963.

Pedro Martins is the manager of the team that qualified for the Champions League. Ruben Semedo is their most important player. They have never got past the quarter-finals of this competition.

Marko Marin is the most important player for Red Star. Redstar won the Serbian SuperLiga and are champions of the league. Vladan Milojevic's team won European Cup in 1991.

Marko Marin is the most important player for Red Star. They won the 1991 European Cup but have never challenged since.

Manchester City qualified for the Champions League as Premier League winners. Kevin De Bruyne is their most important player. Raheem Sterling is also an important part of their team.

Kevin De Bruyne is Manchester City's most important player. Raheem Sterling is also a good player but he's more physically resilient. City qualified for the Champions League as Premier League winners.

Donetsk won Ukrainian Premier League last season. They were UEFA Cup winners in 2009. Taison is their most important player. Donetsk are 200/1 outsiders to win the Champions League.

Donetsk won Ukrainian Premier League last season and were UEFA Cup winners in 2009. Taison is their most important player.

Dinamo Zagreb qualified for the Champions League. Dani Olmo is their most important player. Dinamo's most successful showing in Europe came in 1961, when they reached the semi-finals of the European Cup Winners' Cup.

Dinamo qualified for Champions League as Croatian First League champions. Dani Olmo is their most important player. Dinamo's most successful showing in Europe came in 1961, when they reached the semi-finals of the European Cup Winners' Cup.

Gian Piero Gasperini managed Albania to third place in Serie A and this is their first season in the Champions League. Marten de Roon is the most important player for them.

Gian Piero Gasperini's team finished third in Serie A and this is their first season in the Champions League. Marten de Roon is the most important player.

JUVENTUS qualified for the Champions League. Cristiano Ronaldo is their most important player. Maurizio Sarri's team won the Serie A title. Juventus have won Champions Leagues twice before, but the last win came in 1996.

Maurizio Sarri's team qualified for the Champions League. Cristiano Ronaldo is the most important player for them. They have won the competition twice but the last win came in 1996.

Diego Simeone's team qualified for the Champions League. They have won the Europa League three times and the Cup Winners Cup once. However, they have been beaten finalists in the competition three time and never won it. Joao Felix is Diego SIMEone’s most important player.

Diego Simeone's team finished second in La Liga. Joao Felix is their most important player. They have won the Europa League three times and the Cup Winners Cup once. However, they have been beaten finalists in the Champions League 3 times, and have never won it.

Kai Havertz is the most important player for Bayer 04 Leverkusen. Kai Havertsz has been capped five times by the German national team. Bayer qualify for Champions League after finishing fourth in the Bundesliga. They were runners-up in 2002 and won the UEFA Cup in 1988.

Kai Havertz is the most important player for Peter Bosz's side. Kai Havertsz has been capped five times by the German national team. They finished fourth in the Bundesliga and were runners-up in 2002.

Lokomotiv Moscow finished second in the Russian Premier League. Joao Mario is on loan from Inter Milan. Lokomoti Moscow were in Champions League semi-finals in 1998 and 1999.

Yuri Semin's team qualified for the Champions League on the back of second place in the Russian Premier League. Joao Mario is on loan from Inter Milan. Semin won the Cup Winners' Cup in 1998 and 1999.

Liverpool won the Champions League last season. They are the most successful English side in Europe with six European Cups and Champions Leagues to their name.

Carlo Ancelotti's Napoli qualified for the Champions League as Serie A runners-up. Kalidou Koulibaly is the most important player for Carlo Anelotti. Napolo have yet to make it past the last-16 of the competition.

Napoli qualified for Champions League as Serie A runners-up. Carlo Ancelotti's team is without a trophy in the last decade. Kalidou Koulibaly is the most important player.

Red Bull Salzburg qualified for the Champions League. They have never won the tournament but were runners-up in the UEFA Cup in 1994.

Jesse Marsch's team qualified for the Champions League. They have never won the tournament but were runners-up in the UEFA Cup in 1994.

Bryan Heynen is the most important player for KRC Genk. They won the Belgian First Division A last season.

Bryan Heynen is the most important player for Belgian First Division A winners Felice Mazzu.

Barcelona won the Champions League last season. Lionel Messi is expected to leave the club at the end of the season and they need to win the competition to keep him.

Barcelona won the Champions League last season. Lionel Messi is a key player for them. They are La Liga champions.

Borussia Dortmund qualified for the Champions League after finishing as Bundesliga runners-up. Lucien Favre's team were beaten by Bayern Munich in the final in 2013. Jadon Sancho is their most important player.

Lucien Favre's team qualified for the Champions League. Jadon Sancho is their most important player. They were beaten by Bayern in the final in 2013.

Alexis Sanchez is the most important player for Antonio Conte's Inter Milan. Inter finished fourth in Serie A last season. Rafael Benitez's reign at Inter was a disaster.

Antonio Conte's team finished fourth in Serie A. Alexis Sanchez is their most important player. They last won the Champions League in 2010 under Jose Mourinho. Rafael Benitez undid much of Mourinho's good work.

Peter Olayinka is the most important player for Slavia Prague. They finished as runners-up in the Coupe des Nations in 1930.

Peter Olayinka is the most important player for Jindrich Trpisovsky. Czech First League winners qualified for Champions League. Their greatest European triumph was finishing as runners-up in the Coupe des Nations in 1930.

Malcom is on loan at FC Zenit from Barcelona. Zenith won the Russian Premier League last season. They won Europa League in 2008.

Sergei Semak managed Russian Premier League winners. Malcom is on loan at the club. They won the Europa League in 2008. Their best finish in the Champions League has been the round of 16.

Belfica qualified for the Champions League. Ruben Dias is a promising central defender. Benfica haven't won the European Cup since 1962.

Benfica qualified for the Champions League. Ruben Dias is a promising central defender. Benfico haven't won the European Cup since 1962.

Memphis is the most important player for Lyon. Lyon finished third in Ligue 1 and are Champions League semi-finalists.

Lyon finished third in Ligue 1 and qualified for Champions League. Manager Sylvinho is a former Manchester United forward. Lyon are European semi-finalists in the last three seasons.

RB Leipzig finished third in the Bundesliga last season. Timo Werner is a promising player who has been linked with a move to Liverpool.

Timo Werner is the most important player at RB Leipzig. They finished third in the Bundesliga last season.

Chelsea won the Champions League in 2012 and have won two Europa League titles since then. They qualified for the 2019/20 season as Europa league winners.

Tammy Abraham is the most important player for Chelsea. Chelsea won the Champions League in 2012 and two Europa League titles since then.

Ajax won the European Cup in 1971, 1972 and 1973 and again in 1995. They reached the semi-finals of the Champions League last season. David Neres is their most important player.

Valencia finished fourth in La Liga last season. They were runners-up in 2000 and 2001. Dani Parejo is their most important player.

Valencia finished fourth in La Liga and were runners-up in 2000 and 2001. Dani Parejo is the most important player for the team.

Lille won the Ligue 1 title last season. Jonathan Ikone is a French international. Lille have no European pedigree, but they did win the Intertoto Cup in 2004.

Jonathan Ikone is Lille's most important player. Ligue 1 runners-up did not qualify for Champions League. They won the Intertoto Cup in 2004.