LeBron James arrived an hour early for the Cleveland Cavaliers' shootaround on Thursday ahead of Game 3 at the Boston Celtics to get extra work in.

"I don't do it often, but that's just the mode I'm in right now," James said.

James put himself through an hour-long intense workout.

"He's a very focused guy," Tristan Thompson said. "He understands what it takes to win at this level and he leads by example for us. That's important to have. We know he's not going to tell us to do anything that he wouldn't do."