LeBron James made an incredible block and then busted out one of the NBA's most famous celebrations

Fox Sports/NBA

• LeBron James helped the Cleveland Cavaliers beat the Atlanta Hawks, 121-114, for Cleveland's tenth straight win.
• In the final 30 seconds, James made an emphatic block on Hawks point guard Dennis Schroeder.
• James then wagged his finger at the Atlanta crowd, a tribute to Hawks great Dikembe Mutombo.

The Cleveland Cavaliers beat the Atlanta Hawks, 121-114, on Thursday, and LeBron James finished the Hawks off with a huge block and famous celebration.

After hitting a clutch three-pointer and making two free throws in the final two minutes, James chased down Hawks point guard Dennis Schroeder and pinned his layup attempt against the glass with 25 seconds remaining.

Afterward, James strutted along the baseline, wagging his finger, a nod to former Hawks center Dikembe Mutombo, who used to wag his finger after blocked shots.

Here's the play:

The block was a reminder of James' age-defying athleticism.

The Cavaliers are rolling, winners of 10 games in a row, with James incredible play playing a big part.