McDavid suffered the injury during a fight while playing with the OHL’s Erie Otters in mid-November.
A potential No. 1 pick for next summer’s NHL draft, McDavid took part in Canada’s practice last week.
The Canadians dropped their opening pre-tournament game to Russia, a 2-1 overtime loss, in Toronto on Saturday.
Canada finishes the exhibition portion against Switzerland on Tuesday in Montreal, before opening the tournament against Slovakia on Friday.