When you're a basketball player like LeBron James, you might have to find new and alternate ways to pump yourself up before a game after several years in the NBA.

However, there is only one LeBron James and he's fully capable at any time of jolting fans out of their seats with his raw talent and jaw-dropping athleticism. Nowadays though, you're going to have to keep an eye on him at all times when he steps out onto the basketball court, regardless of whether or not tipoff has already happened.

Need proof? Check out the video and see this little through-the-legs off-the-backboard dunk LeBron pulled off during warmup drills. Though he did it seemingly out of nowhere, this dunk might have been enough to seal the 2013 NBA Slam Dunk competition. Even Rashard Lewis managed to get posterized in the process.