Xander Schauffele has revealed his caddie felt like he needed to throw up when they stepped up to the 18th tee on his way to winning The Open. The final round at Royal Troon was finely poised heading into the back nine before Schauffele moved clear at the top of the leaderboard. While others around him were struggling to find scoring opportunities, Schauffele grabbed three birdies in the space of four holes to move clear going into the 15th hole. Playing partner Justin Rose was keeping Schauffele honest, but the Englishman was unable to get close enough to challenge on the last. Schauffele hel…