The defending champ makes two long birdie putts and gets one big break on his way to a 3-under-par 67, the first time he has had at least a share of the lead after 18 holes in a major. The seven-way tie is the biggest leaderboard logjam

The first round wrapped just as the sun set on Newton Square, Pennsylvania, with seven players tied for the clubhouse lead including world No. 1 and reigning champ Scottie Scheffler. Joining Scheffler for the top spot: Aldrich Potgieter,