An MLB fan sustained significant injuries in a fall from a PNC Park outfield wall on Wednesday night … and the scene was so horrifying, Pirates manager Derek Shelton asked afterward for “everybody to keep him in their prayers.”

The terrifying situation unfolded in the seventh inning of the Pirates vs. Cubs matchup … when a man jumped up from his seat in right field — and then suddenly tumbled all the way to the warning track that was roughly 20 feet below him.

He appeared to flip over multiple times in the air before he came crashing to the ground.

Neither Shelton nor his team had an update on his condition following the conclusion of the game … but the Pittsburgh coach was clearly rattled by the incident.

“It’s extremely unfortunate,” he said when addressing the matter … before adding, “I mean, that’s an understatement.”