James throws down one-handed, full-court bucket

NBA superstar LeBron James has again shown why he is the greatest basketballer on earth after casually throwing down a one-handed, full-court bucket.

James was midway through a practice session with his Cleveland Cavaliers for their upcoming game four showdown with the Boston Celtics when he decided to try the near impossible.

Grabbing the ball in his right hand in the far corner of the court, the 30-year-old James arches his back and hurls the ball towards the bucket at the other end.

The ball arcs over the court and hits nothing but net as teammates and staff scream in delight.

Two-time NBA champion James has been in stellar form this playoff series, leading his hometown club to within one game of advancing to the next round of the Eastern Conference.

He scored 31 points and 11 rebounds as the Cavs took a 3-0 lead in the previous match against the Celtics.