Despite playing with a broken toe, Gerrard managed 70 minutes of England's 3-0 win over Israel and only came off because of cramp.
"The toe is fine. All I had was a bit of cramp. I haven't trained much for the last two or three weeks," said Gerrard.
"I will be a lot stronger on Wednesday for getting that 70 minutes in.
"The toe is healing well and that is behind me now. I didn't need a painkiller.
"I've got a few knocks and bumps but nothing that won't be sorted by Wednesday."