LAS VEGAS — Twenty rounds ago, Sergey Kovalev was boxing’s pre-eminent dragon, a beast who bloodied people for sport.
Two fights with Andre Ward have not only tamed Kovalev. They have reduced him.
On Saturday night he was on one knee as referee Tony Weeks waved his hands in adjournment, and Ward kept the three light-heavyweight championships he took from Kovalev last November.
Kovalev had little to say afterward. The people around him did.
Promoter Kathy Duva, angrily facing a “press conference” that was populated with Ward fans, said it was “inconceivable” that Kovalev could lose on “all those low blows in a