Vin Diesel was talking to the folks over at Screen Junkies about Guardians of The Galaxy, Vol. 2, and he dropped a little guarantee for fans:
“I know that somewhere in the universe you’re going to see Groot and Hulk battle, I know it! Write it down somewhere, you’re going to see that posted: Groot versus Hulk.”
Since the Guardians will obviously team up with The Avengers to battle Thanos in the next phase of Marvel’s universe, it makes sense that he would butt heads with Hulk after he gets done with Thor in Ragnarok/Planet Hulk. Of course, he’s going to have to get a little bigger than he is in Guardians Vol. 2.
That shouldn’t be a problem once Avengers: Infinity War opens. In the meantime, we’ll see tiny adorable trouble-making Baby Groot in Guardians of The Galaxy, Vol. 2 on May 5 next year.