OLD WESTBURY, N.Y. — Two swings cost Dustin Johnson the lead. It wasn’t long before Jordan Spieth and Rickie Fowler caught up to him in The Northern Trust, setting up a weekend of star power in the opening FedEx Cup playoff event.

Johnson, finally looking like the No. 1 player who seemed unstoppable in the spring, appeared on the verge of building a big lead at Glen Oaks Club until consecutive tee shots wound up on the wrong holes and forced him to scramble just to escape with bogey.

Fowler made up a five-shot deficit in six holes playing alongside Johnson, sinking a 15-foot birdie on the last hole for a 66 to join Johnson and Jhonattan Vegas (65) atop the leaderboard. And then Spieth put together a stretch Friday afternoon reminiscent of his British Open victory, minus a shot from the driving range, in a 65.

Spieth began the back nine with five straight birdies, matching his longest streak on the PGA Tour. It ended with a bogey on the par-3 15th when his tee shot rolled back into the water, but he followed with a 40-foot birdie putt up the slope on the 16th.

Spieth made pars from the bunkers on the last two holes to join the others at 6-under 134.

Matt Kuchar looked like he might miss the cut before he ran off four straight birdies. He ended his round of 64 with eight birdies on the last 10 holes.

Kuchar and two-time Masters champion Bubba Watson (68) were one shot out of the lead.

LPGA: In Gee Chun took the lead in the Canadian Pacific Women’s Open, and Canadian star Brooke Henderson did just enough to make the weekend in Ottawa, Ontario.

Chun closed with a birdie on the par-5 ninth for a 4-under 67, giving the South Korean player a two-stroke lead over Americans Mo Martin, Brittany Lincicome and Marina Alex.

Henderson, the 19-year-old local favorite, followed her opening 74 with a 69 to make the cut on the number at 1 over.

CHAMPIONS TOUR: Jerry Kelly and David McKenzie shot 7-under 65 to share the first-round lead at the Boeing Classic in Snoqualmie, Washington.

Kelly had eight birdies and a bogey. McKenzie eagled the par-5 eighth – his 17th hole – to join Kelly atop the leaderboard.

EUROPEAN TOUR: Defending champ Thomas Pieters missed the cut at the Made In Denmark, while Steve Webster took a one-shot lead.