For a few moments last night, Keon Clark reverted to the form that forced the Denver Nuggets to trade the athletic big man.

He would lose his focus when he drove the lane and failed to finish. And, when the officials wouldn't give Clark a favourable call, he allowed his man to beat him down the floor.

For every blocked shot, dunk or assist, Clark is capable of disappearing during games, but he regained his composure last night to help the Raptors hold off the Nuggets in a 98-96 overtime win at the Air Canada Centre.