Manchester United manager Jose Mourinho believes fatigue was a key factor in his sides 1-1 draw with Swansea on Sunday.

"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," said Mourinho when speaking to MUTV.

"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."

"We are in a very difficult situation but the boys gave absolutely everything, so I am more than happy and pleased with them."

There won't be any time for rest either as United face off against Celta Vigo in Thursday night's Europa League semi final clash. With United resting just outside the top four, their success in the competition may be imperative in their attempts to qualify for the Champions League next season.