Is WWE superstar Randy Orton nervous to square off with Brock Lesnar at SummerSlam this weekend?
HELL YES ... and he's man enough to admit it.
"I know I'm gonna get tossed around that ring like a rag doll," Orton told us in NYC Friday ... "But I also know what it takes to beat Brock."
So, what's the secret to victory?
"It just takes one RKO ... at least, I'm hoping."
Ya gotta watch the clip ... Orton says he feels great and is ready to reclaim his crown as the biggest dog in the WWE.