Golfer Jon Rahm waved goodbye to a £1.2million payday after he tested positive for Covid-19 and was forced to withdraw from the Memorial Tournament – despite holding a six-shot advantage at the end of the third round.Rahm, 26, sunk a hole-in-one during an eight-under-par round 64 on Saturday to put himself in pole position at Muirfield Village.But all of the Spaniard’s good work was undone in a few fateful seconds as he left the 18th green.The defending champion was approached by the tournament’s medical advisor and informed he had tested positive for Covid-19, forcing him to withdraw from the event.Rahm was almost reduced to tears after receiving the news but put on a brave face for his followers on Twitter.Posting just hours after the.