Raptors rookie swingman Terrence Ross already has a challenger for his slam-dunk crown.

Pistons rookie Andre Drummond tossed his hat into the ring Friday morning, saying he was hoping to compete in the dunk contest this season before a stress fracture in his lower back ended that dream.

“That was my goal to be in the dunk contest,” Drummond said. “I can’t really do that now, so hopefully next year.”

via Vince Ellis of the Detroit Free Press