Arsenal boss Arsene Wenger fears for the mental state of Cesc Fabregas.
Wenger believes the 22-year-old is far too young to cope with so much responsibility so early in his career.
Wenger said: "He's under a lot of pressure, a lot of responsibilities, for such a young boy.
"He is 22, people forget that, and has a huge weight on his shoulders. I personally believe he handles that tremendously well."
Although Fabregas is tired from playing every three days, Wenger insisted there was no way he would be left out of today's clash with Sunderland.
He said: "We are not in a position where we can rest him.
"We have a chance to get three points against a team who fights not to go down. It will be a battle."