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Worst GagNot everything Matt Damon-centric is gold tonight. When Melissa McCarthy and Jimmy Fallon take the stage to present, the late-night host spins out an elaborate tale about how McCarthy accidentally got brained by a sandbag backstage, and as result, thinks she's Damon. Unfortunately, the joke falls flat. No more half-hearted impersonations for you, McCarthy!
Photo By: Paul Drinkwater/NBC