SAN DIEGO, January 30, 2016 – If Sergey "Krusher" Kovalev established anything with his beatdown of Canadian Jean Pascal in Montreal on Saturday, it was this: his punching skills are exceeded only by his mean streak. Kovalev (29-0-1, 26 KOs) could have ended his fight with Pascal (30-4-1, 17 KOs) several rounds earlier with a clean…