"The reality is for the final I don't think we will have 16 players."
"It's a big final where we want to give our best but the picture is not good," he said, adding he was not counting reserve keepers in the 16.
There is a doubt about Obi Mikel who was injured against Everton. "He has a muscular injury and I don't believe he can play the (FA Cup) game.".
Andriy Shevchenko (hernia) and midfielder Michael Ballack (ankle) and Ricardo Carvalho (knee), are reported to be out of the final.
Mourinho said that Robben, who had knee surgery two months ago, might be fit for the bench.