The Rock Warns CM Punk That "Time's Up"

The Rock issued this warning to WWE Champion CM Punk on his Twitter, building to their title match next month at The Royal Rumble:

Hush little baby don't say a word.. It's just the beast. Next @wwe Champion #TimesUpPunk twitter.com/TheRock/status?

— Dwayne Johnson (@TheRock) December 23, 2012