There is a strong reaction to BC's Micah Awe's brutal hit on Messam with even Derek Dennis of the Riders commenting on it in terms of CTE.

But let’s be real, there was no excuse for Saturday night’s officiating crew at McMahon Stadium missing B.C. Lions linebacker Micah Awe’s head-butt to the back of Jerome Messam’s head.
The Calgary Stampeders running back was already dropping to the ground after a third-quarter run at midfield when Awe launched himself helmet-first into the back of Messam’s head.
It was visible from the McMahon Stadium pressbox, which is a good 300 feet from where the play took place. How the field-level officiating crew missed it is baffling.

They don’t get much more obvious than this.
Messam stayed on the field for several minutes after the play and then went to the Stampeders dressing room. The team announced he was doubtful to return. IMO he should be suspended. The second url below includes a video of the hit.
The hit was exactly the sort of thing the CFL has been trying to remove from the game.
At the very least, it should have been a 15-yard unnecessary roughness penalty, and there’s an argument to be made that it should have received an excessive objectionable-conduct or rough-play penalty, which would have resulted in a disqualification for Awe.
Instead, the Lions weren’t penalized.
http://calgaryherald.com/sports/foot...cfl-punishment


Cheap shot . I'll bounce back!
— Jerome Messam (@JMessam) September 17, 2017
Oh that boy #51 was out there just trying create CTE problems huh smh
— Derek Dennis (@6BONECRUSHER3) September 17, 2017
https://www.3downnation.com/2017/09/...t-leaves-game/