Alonzo Mourning and Shaquille O'Neal played in a game together for the first time this season Sunday.

But coach Pat Riley remains leery of playing the duo together.

''The upside is there can be absolute power, dominance inside,'' Riley said. 'But . . . someone can go, `OK, you're going to go big, I'm going to go with five guards.' I wouldn't challenge [that].''