The skills of Wafer, who averaged 9.7 points off the bench for the Houston Rockets last season, aren't the Mavs' concern. They want to evaluate his sore back again.
Wafer left Greece to re-sign with the Rockets earlier this season but he failed a physical because of a bulging disk.
"He can shoot it. We know that, and he’s athletic," president of basketball operations Donnie Nelson said. "When he’s healthy, he can defend. His athleticism is the thing that kind of separates him, but we want to see where he’s at physically and have a chance to work him out one more time."