PGA Championship is being played at Quail Hollow, where players are once again able to use rangefinders, but only in a certain mode, otherwise they will be penalized

The PGA Championship put the top three players in the world together for the first time in three years on Thursday and the conversation turned to mud. Scottie Scheffler and Xander Schauffele each had clumps of mud on their golf balls from the middle of the 16th fairway — the hardest hole at Quail Hollow — and saw their shots curve hard to the left,