Florida quarterback Graham Mertz had just made his best throw of the night against Tennessee, finally getting a touchdown on the board. Arlis Boardingham was on the receiving end, extending the Gators’ lead to 10 in front of a stunned Neyland Stadium. A great moment for Mertz and the entire offense until disaster somehow struck. Mertz had released the ball and was jumping sideways from a Tennessee defender while watching the play unfold. After a few hops, he suddenly grabbed at his right knee and was instantly in pain. Falling to the ground for a brief second, Mertz eventually limped his way o…