Adam Thielen had another huge game today against the Jets in New Jersey. 110 yards receiving, one touchdown and a gigantic hit to the head early in the third quarter. The hit was not flagged as the defender did successfully get his shoulder in for the hit although it did land on the head of Thielen still.
After the hit, Thielen exited the game for a few plays at which point FOX captured video of Thielen coughing up blood on the sidelines before he would eventually return to the game and make another catch to up his total even more.
I'm not sure why FOX opted to go for the closeup, but if you're not grossed out by this sort of thing here is the video.