Manchester City's new coach Pep Guardiola will be heading back to Barcelona after the Premier League club was pitted against his former team in the Champions League draw today.
Guardiola, who also spent most of his playing career at the Catalan club, steered Barcelona to two Champions League titles as well as a number of other trophies during his time as coach from 2008-12.
Borussia Moenchengladbach and Celtic complete Group C.
Cristiano Ronaldo also returns to his first club as holder Real Madrid has been drawn against Sporting Lisbon. Borussia Dortmund and Legia Warsaw are also in Group F.
Surprise Premier League champion Leicester faces Porto, Brugge and FC Copenhagen in its first time in Europe's premier competition.
The eight four-team groups begin play on Sept. 13-14.
Champions League draw
Group A: Paris St-Germain (France), Arsenal (England), Basel (Switzerland), Ludogorets (Bulgaria).
Group B: Benfica (Portugal), Napoli (Italy), Dynamo Kiev (Ukraine), Besiktas (Turkey).
Group C: Barcelona (Spain), Manchester City (England), Borussia Monchengladbach (Germany), Celtic (Scotland).
Group D: Bayern Munich (Germany), Atletico Madrid (Spain), PSV Eindhoven (Netherlands), Rostov (Russia).
Group E: CSKA Moscow (Russia), Bayer Leverkusen (Germany), Tottenham (England), Monaco (France).
Group F: Real Madrid (Spain), Borussia Dortmund (Germany), Sporting Lisbon (Portugal), Legia Warsaw (Poland).
Group G: Leicester City (England), Porto (Portugal), Club Brugge (Belgium), FC Copenhagen (Denmark).
Group H: Juventus (Italy), Sevilla (Spain), Lyon (France), Dinamo Zagreb (Croatia).