We've seen it time and time again in boxing. A faded former great turns back the clock for that last great performance. Harking back to what they once were. Last night Kovalev gave us just that. For those in the loop you already know what a H2H monster Kovalev was in his heyday. A 31 year old Kovalev would be a heavy favorite over anybody 175 on down today. Last night he showed he still had 1 more trick up his sleeve.