Scottie Scheffler won't be the wire-to-wire winner of his hometown Byron Nelson again this year.
For now, the world's top-ranked player is chasing a leaderboard that includes Brooks Koepka, the five-time major champion looking for his first victory since returning to the PGA Tour from LIV Golf.
Koepka shot an eight-under 63 on Thursday and trailed first-round leader Taylor Moore by one at the revamped TPC Craig Ranch, while playing with Scheffler (66) and Si Woo Kim (64).
"I felt like I was getting lapped out there for a little bit," said Scheffler, who led from the start of last year's Nelson and won by eight shots at 31 under while tying the tour's 72-hole scoring record at 253.
"So I was fortunate to make a couple birdies late in the round and keep myself in the tournament."