Sergey Kovalev has a message for Andre Ward ... I'M GONNA KICK YOUR ASS ... telling TMZ Sports their fight Saturday night ain't gonna be a Mayweather/Pacquiao snoozefest ... it's gonna be all-out war.
We talked to the Krusher about his pound-for-pound showdown with Ward in Vegas this weekend ... and asked if he had any final message to the undefeated Ward.
"Get your ass ready ... for kicking."
It's better when you hear it in the Russian accent ... makes you think about the man we lost (R.I.P. Apollo Creed).