Speaking to the Sunderland Echo, Di Canio said: "I wanted to send him on the field, but he wasn't ready.
"I brought him with me on the bench to let him smell the atmosphere again. It was important for him and for us. But he had a little problem in his calf muscle.
"At the end of the game, we didn't need a defender. I asked Wes how he felt, but, to be honest, he wasn't completely confident."