The 105th PGA Championship will be held at Oak Hill Country Club in the Rochester, New York, area. Justin Thomas will look to defend his title; Jon Rahm and Scottie Scheffler aim to build on their dominant seasons; and Jordan Spieth will return from an injury with hopes of completing the career Grand Slam. We'll see LIV Golf players in the field this week as the PGA of America stuck with its usual invitation methods. Among the 18 LIV golfers competing are Cam Smith, two-time PGA champion Brooks Koepka, Dustin Johnson, Bryson DeChambeau and Phil Mickelson. Here's everything you need to know going into the 2023 tournament.