Toronto lost starting goaltender James Reimer with what appeared to be a head injury after a first-period collision with Montreal forward Brian Gionta.
Gionta came through the creased and connected with Reimer's head, knocking him down and knocking his helmet off. Reimer appeared to be dazed but finished the period. However, when the teams came out for the second period, backup Jonas Gustavsson was in goal. Gustavsson got credit for the victory when the Leafs won 5-4 in overtime.
There was no immediate word on Reimer's condition.
