Cunningham, who will be given the job of marking Morrison when the Dons clash with Crystal Palace this weekend, admits he is a big fan of the Eagles striker.
"He has done well and will keep improving as a player and I think he will become a Premiership player whether it be with Palace or someone else," insists Cunningham.
"I haven't been involved in the Irish squad too much when Clinton has been there but he scored a goal on his debut which was a great achievement and he has impressed everybody in training."