Bryson DeChambeau carefully prepares for his tee shot on the challenging par-three 17th. He swaps irons and shifts his tee peg before sending a wayward drive right toward the crowd and grandstand. A drop seems likely, but the position mirrors one that troubled Cameron Smith previously, leaving plenty of work ahead. DeChambeau appears frustrated after a tough start to his round.

Rory McIlroy has been steady without much fanfare recently. Following his bogey-birdie opener, he nearly holes a massive 60-foot putt on 15, settling for tap-in range and holding at even par. Cameron Smith meanwhile salvages bogey on 18 after that severe hook, a solid recovery under pressure.

Cameron Smith lands on rough ground near a generator and skip. With his signature mullet and mustache, it evokes working-class Americana straight out of a classic rock video. He chips safely back to the fairway center but faces a 181-yard pitch for par to avoid consecutive dropped shots.

Stephan Jaeger rebounds from his first bogey with birdie at the par-five 9th. The German reaches the turn in 31, reclaiming outright lead. Alex Fitzpatrick also birds with a curling 20-footer downhill on 13, vaulting the Englishman back into contention.

-4: Jaeger (9)
-3: Cauley (8)
-2: A Fitzpatrick (13), C Smith (8*), Greyserman (7), Schauffele (6*), Snedeker (5)

Cameron Smith hooks perilously near out-of-bounds left on 18. Behind a grandstand and structures, obstacles like skips and cables might yield a favorable drop. The referee approaches to assess the unusual lie.

Garrick Higgo's prior best PGA finish was T55 at Quail Hollow last year. The South African started poorly, arriving one minute late for his tee time and incurring a two-stroke penalty for a double-bogey six. Remarkably, he battles back to even par at the turn with birdies on 3 and 9.

Cameron Smith lies 30 yards right of the 17th green. Pin tucked nearby, options limited, but he executes a superb lob wedge to the green's center. The 16-footer for par slides by, dropping him to -2 with the bogey.

Xander Schauffele veers left after bunker trouble on par-three 14 tee. Cameron Smith flares right on 17's tee. Leaders update:

-3: Jaeger (8), C Smith (7*), Cauley (7)
-2: Brennan (9), Greyserman (6), Schauffele (5*), Fox (5)

Bud Cauley joins the leaders with a 50-foot bomber on 7 for birdie three. The Florida pro's putt rockets in; otherwise, more strokes loomed. Now at -3.

Cameron Smith rediscovers form absent since 2022 Open win. After six straight major missed cuts, he birds 10, 13, and drains a long one on par-five 16 to reach -3 alongside Jaeger and Schauffele.

Jordan Spieth pulls off a superb up-and-down on 13. Deep rough off tee leads to layup trouble, but he chips to 15 feet and sinks par. The scrambler extraordinaire stays even par.

Xander Schauffele birds third in four holes. Shares lead as Jaeger first bogeys long par-three 8th (245 yards).

-3: Jaeger (8), Schauffele (4*)
-2: Brennan (8), C Smith (6*), English (6), Cauley (6)

Rory McIlroy bombs 352-yard drive center on 12. Longest today by far per graphics, but undercooked wedge and first putt lead to par scramble. Aronimink's contours challenge elites; short game will decide winner.

Bryson DeChambeau struggles persist. Iron into rough on 13 tee, overshoots green, chips to 20 feet, bogeys to +2. Partner Ludvig Aberg birds via gallery-trampled lie, wedge to 12 feet, back to even.

Players wild off tees everywhere. Rahm left on 12, Aberg trees right on 13, DeChambeau irons safe into right rough on 13. This PGA promises excitement.

Rory McIlroy bounces back with birdie on 11. Straightforward: center drive, wedge to three feet, holed. Erases bogey, first in five years at PGA. Aberg saves par spectacularly from rough on 12 despite +1 after 10 bogey.

Stephan Jaeger extends lead with 25-footer on 6.

-4: Jaeger (6)
-2: Hall (8), Brennan (6), C Smith (4*), Schauffele (2*)

Stephan Jaeger thrives early. Past PGA cuts made, best T50. Birds 1,4,5 for -3 first. Smith birds 10,13; Schauffele (2024 champ) birds 10,11.

-3: Jaeger (5)
-2: Hall (8), Brennan (6), C Smith (4*), Schauffele (2*)

Bryson misreads distances. Short on 10 approach, overhits 11 wedge, questions caddie. Pars from fringe but shaky for two-time US Open winner. Rahm, Rory bogey early; Aronimink fights back.

Rory McIlroy skulls recovery on 1 after tree ricochet into rough. Topped shot dribbles 100 yards. Contradicts his tee strategy comments.

Bryson DeChambeau lacks feel early. Short into 10, over wedge 11, fringe par save uncertain start.

Rory McIlroy opens wildly right on 10 into tree and rough. Groups with Rahm, Spieth (slam chase).

Bryson DeChambeau squanders strong 10 drive. Mediocre wedge, weak first putt, saves par from five feet. Aberg three-putts for bogey.

Michael Brennan debuts at PGA. Recent Masters T24, Utah win. Co-leads at -2 with Harry Hall (Cornwall, Quail Hollow top 20). Early birds.

-2: Hall (6), Brennan (5)
-1: A Fitzpatrick (7), McCarthy (6*), N Hojgaard (6), McKibbin (3), Jaeger (3), C Smith (3*), Harman (3*), Cauley (2), Greyserman (1)

Bunkers and vast greens defend Aronimink. Rain lengthens slightly, drizzly start, cloudy with showers possible, wind light. Better forecast ahead: sunny, calm.

Aronimink favors bombers; tee accuracy forgiving. McIlroy calls tee strategy minimal; Scheffler notes offline recovery. DeChambeau rips 10 center. Woodland (Houston winner) even thru 11.

Spotlight on in-form Alex Fitzpatrick to start.