Manchester United manager Jose Mourinho said his players were tired in the wake of their 1-1 draw with Swansea on Sunday that saw them miss out on the chance to go third.
Wayne Rooney scored a dubiously awarded first-half penalty before a sensational second-half Gylfi Sigurdsson free-kick.
The result left United in fifth on 65 points, level with Manchester City ahead of their clash with Middlesbrough and a point behind Liverpool, who play Watford on Monday.
After the match, Mourinho told MUTV: "It’s not that we looked tired, we are tired.
"If some people want to analyse the performance itself, that’s one thing, but you cannot do that, you can’t analyse the performance out of context. The context is nine matches in April, this is the ninth match in April with a squad of 22 that has now been reduced.
"The players are very, very, very tired. So, I don’t isolate the performance from the context.
He added: "We are in a very difficult situation but the boys gave absolutely everything, so I am more than happy and pleased with them.
"I am intelligent and experienced enough not to isolate the performance from the context, and to say they’re brave guys, they gave everything they could once more. On Thursday [at Celta Vigo], we’ll go again."
Mourinho made mention to his side's next big test, the first leg of their Europa League semi-final against Celta Vigo.
"For me, the next game is always a big game.
"We give everything. When you give everything, you can’t do any more, so for sure we’re going to give everything. With one more day to rest than from Thursday night to Sunday morning, we have one day more. It’s a little bit more human, if you can say that, and for sure we’re going to give everything.
"It doesn’t matter about the result or if we go to the final or not, I’m really happy with the personality and character of these guys.”