Chelsea's number one had nine stiches in a gash below his knee following a clash with William Gallas on 40 minutes.
He failed to come out for the second half but says he ready to play for Chelsea glory.
"I had quite a big cut and it was very painful.," the 23-year-old said.
"But there is nothing serious so it is good news. Everyone is positive and I think I'll be ready for the next game.
"I went for the ball, felt the pain and at first I thought my leg was broken.
"But fortunately after that I was able to stand up. I thought I'd try and stay until the end of the first-half, but it was a good decision to go off in the end.
"It is the manager's decision and whether it is me or Carlo, we will be strong enough," he said.
"Carlo has been doing brilliantly well and with him in goal we have reached the semi-final. Now we must make sure we make the final."