Dylan Walker will start in the centres, with Cronulla's Jack Bird to make his Blues debut off the bench.
Morris suffered a groin injury in a training run on Thursday, underwent intense rehabilitation on the team's day off on Friday before looking to prove his fitness on Saturday.
"It was my call. It's about putting the team first," Morris said on Saturday.
"I don't want to go in there and give a poor performance in a Blues jersey because of an injury.