It will be Torres' first game for Chelsea since playing in the Champions League final.
"Fernando is going to play in his centre-forward role, it is just a question of how much time he can play on the pitch," Di Matteo said.
"He joined at the beginning of the week, he has had a flight and jet lag and a few training sessions in his legs so we will have to see. I will probably decide after training. It will be at least 30 minutes but we will see after."