Went back to watch when Oshie got injured. Appeared too happen on a 2 on 1 with Vande, but it didn't really look like the DU player hit him with the stick, and there was no body contact, so I don't know. He was skating fine up until that point, but immediately after the 2 on 1, he crouched over and went to the bench. I thought maybe the stick of the DU player got him in the midsection or something...not the leg. Thankfully, he's back.
As for the Dunc slashing call immediately following that...WEAK CALL. Dunc's stick hit the player in the upper arm/shoulder, but not with any force.