The 33-year-old looked like he had never been away on Sunday, as he came off the bench to impress in the 2-1 London derby defeat to Tottenham at White Hart Lane.
"He has been out so long that we have been trying to ease him back.
"Maybe we got that a little bit wrong because we brought him on after two minutes (against Spurs) and he still looked full of energy after 90.
"You have got to give him credit. It's been a long road back for him but you saw what he can bring to the team."