In the moments after the Game 1 loss in the NBA Finals in May, a combination of rage, frustration and disappointment led LeBron James to explode in the visitors' locker room in Oakland and punch a whiteboard, cracking a bone in his hand.
James' teammates and coaches had never seen James quite in that state. It was an extreme example of his intense competitive spirit. Even though his Cleveland Cavaliers were heavy underdogs to the Golden State Warriors, James very much believed that he could lead the team to an upset.
This is James' personality, it's who he is.