Frightening moment during the Miami Heat and Indiana Pacers game … when forward Derrick Jones, Jr. had to be stretchered off the court following a hard collision.

Jones — the 2020 Slam Dunk champion — collided with Pacers player Goga Bitadze in the second half of Friday’s matchup … when the center set a pick that sent DJJ to the ground.

Reporters on the scene say Jones, Jr. was lying face-down on the court for several minutes before he was put on a stretcher with a neck brace.

Jones — who grabbed his neck as soon as he started falling to the ground — was chasing forward Doug McDermott as he collided with Bitadze’s shoulder.

No word on Derrick’s status … but here’s hoping he’s okay.

Jones has had a breakthrough season for the #4-seed Heat … averaging 8.6 points a game.