Xander Schauffele wins thrilling PGA Championship at Valhalla

Neither a mad scientist nor the monkey on his own back could prevent Xander Schauffele from taking the hardest step in golf on Sunday night. On no fewer than 12 occasions he had finished in the top 10 in one of his sport's big four, so how fitting that he should win the 106th US PGA Championship by the skin of his nose in the home city of the Kentucky Derby. At 20 under par he had equalled the lowest ever score in major history, but that was a status he held for barely half an hour, because along came Schauffele. Exactly a week had passed since he coughed up a good lead to Rory McIlroy on the final day at Quail Hollow, which came with all the reminders that he had not won on the PGA Tour for almost two years.