The PGA Championship has its biggest logjam after one round in 57 years. One name stands out. Scottie Scheffler, the defending champion, took everything Aronimink gave him on a tough day in the Philadelphia suburbs. Scheffler made two long birdie putts and got one big break for a 67. The other seven players tied for the lead are Martin Kaymer, Stephan Jaeger, Aldrich Potgieter, Alex Smalley, Ryo Hisatsune and Min Woo Lee. Scheffler had at least a share of the lead for the first time after the opening round of a major. Rory McIlroy struggled to a 74.