Ole Gunnar Solskjaer has accused Premier League schedulers of failing to give Manchester United enough time to prepare for European matches.
United face Club Brugge in the Europa League on Thursday, just three days after facing Chelsea on Monday night.
Solskjaer's team won 2-0 at Stamford Bridge but afterwards he questioned why the fixture could not have been played earlier to give his players more recovery time ahead of their European tie in Belgium.
"We have got a game on Thursday, so thanks for the help in recovery we get in Europe," Solskjaer said.
"I saw Jose [Mourinho] say something about that as well. We don't really get too much help to prepare for Europe."
In contrast Club Brugge, top of the Belgian league, played their weekend fixture on Saturday and will have two days more to prepare for United's visit.
"For me, how we didn't play [Chelsea] on Friday, Saturday or at least Sunday is beyond me," Solskjaer said.
"I don't like to complain, you know that, and we have just got to get on with it and do as well as we can."