by David P. Greisman

Sergey Kovalev had never gone 12 rounds — heck, he’d only gone eight rounds once before — before this past Saturday’s decision win over Bernard Hopkins.

“I can’t because he has very, very, very hard head,” Kovalev said at the post-fight press conference. “I hurt my hands. He got a lot of hard punch from me but he stay on his legs, like unbelievable.”

He did floor Hopkins with a well-timed counter in the first round and momentarily stunned him on a few other occasions.

Asked when he hurt his hands, Kovalev only mentioned his left hand — hurt in the second round off a jab.

Pick up a copy of David’s book, “Fighting Words: The Heart and Heartbreak of Boxing,” at http://bit.ly/fightingwordsamazon or internationally at http://bit.ly/fightingwordsworldwide. Send questions/comments via email at fightingwords1@gmail.com