'Superman is on the mend': Dwayne Johnson tweets snap from his hospital bed after undergoing emergency hernial surgery

'Surgery a success': Dwayne 'The Rock' Johnson tweeted this hilarious snap from his hospital bed on Monday after undergoing emergency hernial surgery

'On the mend': The actor-turned-wrestler kept his fans updated on his progress via his Twitter page

Don't panic! Dwayne 'The Rock' Johnson, pictured at the Miami premiere of Pain and Gain on April 11, had to undergo an emergency hernia operation, but he's fine 

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