By Abigail O’Leary A tennis player at the Miami Open collapsed mid-match before being taken off in wheelchair. Arthur Cazaux was playing against Harold Mayot when he fell to the ground when he collapsed to the ground during the middle of the third set. Cazaux lay on his back for several seconds before medics rushed to his side. After medics and an empire tending to him, a wheelchair was brought onto the court to wheel off the 21-year-old. The French player was in the decisive third set when he fell to the ground. Cazaux had levelled the match by winning the second set 7-5 after Mayot took the …