Blues fan here. Bad hit, anticipating a deserved suspension. I hope Tennyson isn't out long.
I know its no consolation, but the last time anything like this happened in a Blues game has been years ago (I know you know exactly how long because it was also against the Sharks when Lapierre got suspended.)
I am not sure what Reaves was expecting, maybe that Tennyson was going to turn sideways and he'd catch his shoulder. Either way, bad judgement from a guy who has not normally committed borderline hits. If someone hit one of our guys like that, I'd be pretty angry (like "we just replaced your Folger's crystals" angry).
The Sharks are my second favorite team, which was cemented by the all-star events this year. I wish you luck.