LeBron James Played Against Kids At A Birthday Party And Showed No Mercy

From the looks of social media, LeBron James is taking his NBA Finals loss pretty well. And by well, I mean he's getting back in the gym immediately, shaving his head, and going full-on serious ball-is-life mode.

It seems that his off-the-court intensity is already translating to his off-season games as well, and no pick-up game is safe.