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 on Thursday.
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.
The two teams play each other on 19 October in Barcelona and 1 November in Manchester.
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 City faces Porto, Brugge and FC Copenhagen in its first time in Europe’s premier competition.
The eight four-team groups begin play on 13-14 September.