John Rahm and Bryson DeChambeau test positive for Covid-19, out of the Olympic Games Patrick Reed has been called up as a replacement for DeChambeau. By Gavin Cooney Sunday 25 Jul 2021, 8:43 AM 5 hours ago 3,917 Views 3 Comments John Rahm. Updated 49 minutes ago WORLD NUMBER ONE Jon Rahm withdrew from the Olympics on Sunday after testing positive for Covid-19 for the second time in two months, the Spanish Olympic Committee confirmed. Rahm, who stormed to victory at the US Open in June, returned a positive sample after undergoing mandatory testing following his recent participation in the British Open. It was the latest twist to what has been a tumultuous season for the 26-year-old Spaniard.