Tough break for Big Ben fans—Shelton was forced to retire from his US Open clash with Mannarino after a brutal left shoulder injury. The match was tied at two sets each and Shelton looked in control before disaster struck. Mannarino even admitted Shelton probably would’ve won if not for the injury. This unexpected turn hands Mannarino a ticket to the fourth round, but you have to feel for Shelton, who’s been on fire this season. #Sports #BenShelton #USOpen