According to the article, Kupp is pushing to play on Sunday, and the injury wasn't as bad as it initially appeared to be.

From absolutely dominating, to missing back to back field goals, Stafford getting hurt, watching the game slipping away from us, OT, and then Puka giving me even more fantasy points this year.

Hopefully it's nothing serious with Stafford's hip/leg. Definitely don't want him hurt, especially with Stetson Bennett out right now.