During the Avalanche-Sabres game today, Cale Makar took an awkward hit from Okposo that resulted in him crashing into the boards. The collision occurred with Makar's leg forced underneath him, and he was quickly hurried to the Avalanche locker room to be evaluated.
There has been no update on Makar's status, but it is highly likely that the injury was sustained to the lower body. Clearly, the Avalanche bench thought this play should have been penalized as MacKinnon took a 10-minute misconduct to let the refs know what he thought about the call.