Damien Duff remains doubtful with a knee problem but Kezman insists Chelsea's squad is strong enough to cope with such a crop of injuries.
He said: "We've got a good group and a big squad so can definitely do it. We're mentally strong, our spirit is fantastic and the spirit in the dressing room is still very good. Our club is strong enough to come through this problem. All the lads have forgotten about Newcastle already and are looking forward to tomorrow's game.
"All the players think the same way which demonstrates our unity. It's almost impossible to win every trophy and we got a difficult draw against Newcastle, ending up with nine men. It couldn't have gone worse for us but that's football."
