The studio's confirmation came after Diesel posted a photo that showed him hugging a model of Groot, the Hollywood Reporter said Saturday. Diesel has been hinting at the role for some time, posting photos that showed him with motion-capture equipment.
The movie's director, James Gunn, reposted the photo on WhoSay with words of praise for the actor: "Vin Diesel is a super awesome dude. I can't tell you how much I like this guy."
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