Defending champion Scottie Scheffler began Sunday's final round of the PGA Championship five strokes behind leader Alex Smalley and in need of a superb fightback at formidable Aronimink.

Scottie Scheffler was among seven golfers to fire matching 67s, earning a share of the lead through Thursday's first round of the PGA Championship.

Top-ranked defending champion Scottie Scheffler fired a three-under par 67 to seize a share of the lead in Thursday's opening round of the PGA Championship.