Paris Saint-Germain manager Luis Enrique said the "unknowns" of the new Champions League format make it hard to judge his team's opening win over Girona on Wednesday.
Barcelona coach Hansi Flick said he feels guilty for letting Fermín López join up with Spain U21s earlier this month after the midfielder was ruled out for another three weeks.
Arsenal captain Martin Ødegaard will be out "for a while" after suffering a significant ankle injury while playing for Norway last week, manager Mikel Arteta said on Wednesday.
Former England and Liverpool striker Andy Carroll has signed for French fourth-tier club Bordeaux from Amiens, the six-time French champions confirmed on Wednesday.
Former AC Milan striker Zlatan Ibrahimović discussed his executive role he holds at the Italian club before their Champions League defeat to Liverpool on Tuesday, saying "the others work for me."
Christian Pulisic and Weston McKennie became the first pair of United States internationals to score on the same day in the UEFA Champions League as Europe's top competition returned on Tuesday.
Football's governing body FIFA and the World Health Organization (WHO) on Wednesday launched a global concussion awareness initiative developed with brain health experts.
AS Roma have sacked head coach Daniele De Rossi after the club went winless in their first four league matches of the season, the Serie A side said on Wednesday.
Liverpool had to battle back from being a goal down inside three minutes, but Arne Slot's side prevailed with set piece magic to beat Milan in their Champions League opener.
Despite Barcelona turning to their youngsters in a moment of need, the kids are delivering in brilliant fashion ahead of their first Champions League game.
Premier League referee Chris Kavanagh conceded he 'didn't like' showing Arsenal midfielder Declan Rice a red card for kicking the ball away during the draw against Brighton last month, but had no choice.