Rob Gronkowski is older and wiser, but he’s still The Gronk

FOXBORO – It was a sizzling and steamy Tuesday morning at the New England Patriots training camp. "A hot day like that, a hot practice like that, can test your soul," tight end Rob Gronkowski said afterward. "To me, it’s fun. And some of what happens in it is part of the nature of the game." That "nature" Gronkowski was dissecting was a late practice brawl between veteran receiver Julian Edelman and new cornerback Stephon Gilmore, in from the Buffalo Bills. Edelman and Gilmore, once fierce rivals, looked more comfortable keeping it that way. The Edelman/Gilmore fracas in the end zone after an incomplete pass caused most of their teammates to rush toward them and snuff it. Edelman was booted from