David Clarkson practiced on Toronto's third line Monday. He joined Jay McClement and Carter Ashton on the combination. Clarkson has one assist in seven games this season. "A pro like David knows he can contribute in other ways. The points are going to come for him. The goals will come through his play," said Leafs' vice-president of hockey operations Dave Poulin. "But he's a true professional. It's about wins and losses for David Clarkson. And that's what makes him so valuable." He has found much offensive production yet, but he does have 23 penalty minutes and 23 hits.