Manchester United boss Louis van Gaal says he will make changes for this afternoon's away game at Norwich City.
The Red Devils can still qualify for next season's Champions League but they need to win all their remaining games and hope for Arsenal to cause a major upset at Manchester City on Sunday.
And the Dutchman says his players will fight until the very end to reach Europe's most prestigious competition.
"We have to assess the tiredness of the players because there's an overload of matches, so maybe I have to rotate," van Gaal told MUTV.
"[Marouane] Fellaini is suspended so I will have to change my line-up. Every week you have something that you don't like, but I think we can manage.
"When I can, I shall do it [stick with the same team] always, in every club I have done that.
"In the Premier League it is more difficult because of the overload of the matches, we have to play more matches than in Spain or Germany, so I have to rotate sometimes, but also because of injuries or suspensions.
"We have to win our matches because otherwise we cannot be in the first four - that's the pressure that we have. We have to fight until the end, and then we have still a title [trophy] to win.
"It is always difficult to fight against a team [like Norwich City] who fights to maintain their place in the Premier League - that is always very difficult.
"That is no excuse; we have to cope with that.
"Norwich won at Old Trafford so we have to take revenge. It shall be a very tough game, but in spite of that we have to win."