Day 3 at Shinnecock

Keep that card

Tony Finau and Daniel Berger: They started Saturday tied for 45th, went out early and carded a pair of 4-under 66s. That allowed the pair to spend the afternoon watching their names skyrocket to the front page of the leaderboard while everyone else struggled with the punishing Shinnecock greens.

Toss that card

Phil Mickelson: No one really knows what Mickelson was thinking when he obliterated rule 14-5 and hit his ball while it was still moving on the 13th green. But Lefty surely will never forget his 48th birthday - carding a 10, signing for an 81 and drawing the ire of many.

On the course with

Dustin Johnson: It took all of two holes for the solo leader to unravel on the USGA’s watch. Johnson, who led by four strokes, hadn’t been over par through the first two rounds and hadn’t three-putted. After a double-bogey 5 on No. 2, he had done both. He also bogeyed the fourth, sixth and seventh holes to turn in 6-over 41. Johnson played holes 8-17 in even par but three-putted 18 to drop to 3 over, and in a four-way tie for the lead.

Open moment

Amateur Ryan Lumsden missed the cut after shooting 82-76, but his phone rang late Friday evening with a request from the USGA. Could he wake up early Saturday and play as a marker alongside Tim Wilkinson in Round 3? “I thought it was always a club pro, someone who played at Shinnecock or an esteemed member,” said Lumsden, the Scottish amateur champion who plays men’s golf for Northwestern. “So to be given this opportunity is incredible. I’m so thankful.” Lumsden didn’t card an official score but said he “played well ... a brilliant lesson.”

Chip shots

• Oddsmakers put the over/under for highest score on any hole this week at 9.5. No one had posted anything higher than a 9, until Mickelson’s sextuple-bogey.

• Defending champion Brooks Koepka made a 61-foot putt on No. 14 ... for par.

• The final five pairings on Saturday shot a combined 67-over-par.

• The third-round leader hasn’t been 3 over after three rounds since 1963.

Key hole

Par-4, 366-yard No. 13: Will forever be remembered as the site of Mickelson’s meltdown but it also played as the third-hardest hole on a brutal day for scoring. Berger managed one of only four birdies there on Saturday. The other three co-leaders all made par.

Quote of the day

“Nope.”

— Mickelson, in a text to former Sports Illustrated writer Alan Shipnuck, when asked if he’d like to comment further on negative reaction to his antics.

Tweet of the day

“I’m not sure i could possibly comment without using words which shouldn’t be seen... just like some of those pins.”

— @IanJamesPoulter, on Saturday’s course set-up.

Day 4

So many story lines, and just 18 holes to get them all in. How will the crowds treat Mickelson? What will the USGA do to the greens? Can DJ surge ahead again? Will Koepka repeat? Ch. 9 has coverage beginning at 9 a.m.

BRIAN STENSAAS