Watch: LeBron shows off ridiculous conditioning drill

Have you ever wondered how LeBron James remains one of the world's fittest athletes year after year?

The Cleveland Cavaliers icon offered another glimpse of his grueling offseason workouts Tuesday, this time focusing on an insane conditioning drill.

The 32-year-old forward sprinted the length of the court and finished with a dunk, then ran back the other way and did it again and again until he completed eight rounds without stopping.

James is entering his 15th NBA campaign and on the hunt for his fourth championship ring.