The 2015/16 group stage will bring some thrilling encounters and memorable storylines - watch some of the highlights from last season.
Messi magic downs Leverkusen
Messi on Best Player award
After being named the winner of the UEFA Best Player in Europe Award for 2014/15 in Monaco, Messi gave his reaction to UEFA.com.
Messi: Best Player winner
Barcelona forward Lionel Messi is on the three-man shortlist for the UEFA Best Player in Europe Award. See why he’s a contender and find out if he picks up the prize on 27 August.
Messi’s 80 European goals
See all 80 goals that Lionel Messi has scored in European club competition, from his first in 2005 up to his free-kick double against Sevilla in the UEFA Super Cup.
Ibrahimović on his Malmo roots
Swedish star Zlatan Ibrahimović tells UEFA Training Ground about his first football memories, playing for grassroots clubs in his home town and how he is now giving something back.
Watch Messi’s Goal of the Season
See Lionel Messi's magical chip against Bayern which was voted the 2014/15 UEFA Goal of the Season.
See Ter Stegen’s Save of the Season
Watch the brilliant double save by Barcelona’s Marc-André ter Stegen against Bayern that was voted the 2014/15 Save of the Season.
Ronaldo's 80 European goals
Watch every one of the 80 goals that Cristiano Ronaldo has scored in European club competition for Manchester United and Real Madrid, including his strikes in the 2008 and 2014 UEFA Champions League finals.
Rooney's last qualifying goal
After his hat-trick against Club Brugge for Manchester United, we turn the clock back to 2005 to show you the last time Wayne Rooney scored a qualifying round goal in the competition.
Ten great United goals
Andersson reacts to Malmö test
Former Sweden star and current Malmö sports director, Daniel Andersson, spoke about the prospect of facing Real Madrid, Paris Saint-Germain and Shakhtar Donetsk.
Karembeu on Olympiakos draw
Champions League winner Christian Karembeu gave his reaction after Olympiakos were drawn in a group with Bayern, Arsenal and Dinamo Zagreb.
Who is Zanetti's Best Player?
See who Inter great Javier Zanetti thinks should win UEFA's Best Player in Europe Award today. Find out whether it's Lionel Messi, Luis Suárez or Cristiano Ronaldo from 17.45 CET on UEFA.com