The PGA Championship has been a wild ride this year, and several big names are battling it out in the tournament on Sunday in*St. Louis. Famous faces like*Tiger Woods,*Jordan Spieth and*Brooks Koepka are in the competition this year, and their spouses and girlfriends have been*cheering them on from the sidelines. Click through the gallery below to see the wives and girlfriends, also known as WAGs, of players competing*in*the 100th PGA Championship.