Joey Bosa makes light of being knocked unconscious during game

San Diego Chargers defensive end Joey Bosa has been one of the NFL's most pleasant surprises this season. After a rocky start to his career that included a four-week holdout over a contract dispute, he's become one of the league's best pass-rushers.

But perhaps the rookie still has a thing or two to learn about how to act on social media. Bosa posted the above photo to his Instagram account Tuesday with the caption "When you're unconscious but sacks = stacks."

Considering the links between concussions and CTE, Bosa making light of being knocked unconscious on the field might not sit well with some current and former players.

Here's video of the play. Bosa left the game and was later diagnosed with a neck injury: