Tennis Player Arthur Cazaux Collapses During Match, Wheeled Off Court

French tennis player Arthur Cazaux suffered a terrifying health scare during his match Monday — collapsing on the court as medics rushed to his aid.

Cazaux was waiting to return serve from Harold Mayot in the third set of their game at the Miami Open when he suddenly crumpled to the ground while the TV cameras were rolling.

Check out the video … Cazaux was laid out on his back with his body twitching and his stiff…