play a match

i have a little problem in a carreer. i have too many injured players et i can play the match. the button play match is not present. how can i do ?
thx

Move down to the last player in your squad list. Then move left. The head icon will be selected. Press fire here to cycle to a different (available) player. Probably a loan or trainee. You can then put this dude in your match squad.

;D

ok thanks !!