Tiger Woods and Rory McIlroy had everyone's initial attention Thursday morning at Muirfiled Village, but it was Jordan Spieth who stole the spotlight.

Playing alongside McIlroy and Justin Thomas, who was making his first start since the Masters because of a wrist injury, Spieth made four birdies over his opening nine holes (beginning at the 10th).

It began with this chip-in for birdie at the par-5 11th.

No putt, no problem.@JordanSpieth makes birdie with a wedge.#QuickHits pic.twitter.com/KPP5AZmvP7

— PGA TOUR (@PGATOUR) May 30, 2019

Continued with this approach shot at the par-4 14th.

Dialed in.@JordanSpieth is 2-under through five holes.#QuickHits pic.twitter.com/TiUiExtKA1

— PGA TOUR (@PGATOUR) May 30, 2019

Then this birdie at the par-5 15th.

The imagination of @JordanSpieth on full display.

He's just two back.

?/?: https://t.co/g2qRVkammA pic.twitter.com/3knpGRCFoJ

— PGA TOUR (@PGATOUR) May 30, 2019

And concluded with this approach shot at the par-4 18th.

This is fun to watch.@JordanSpieth is feeling it.

He makes the turn in 32 and is two off the lead.#LiveUnderPar pic.twitter.com/Gfny7HTk4L

— PGA TOUR (@PGATOUR) May 30, 2019

Well, not really concluded. Spieth kept adding red numbers to his card on the front nine. He birdied the par-4 third.

Another wedge, another birdie.@JordanSpieth is now 5-under.#LiveUnderPar pic.twitter.com/e3YR6dCeLe

— PGA TOUR (@PGATOUR) May 30, 2019

Kept his card clean with this chip-in par at the fourth.

Tough lie in the rough. ?

Pitches it over the green. ?

Holes it for par. ?@JordanSpieth can do no wrong on Thursday @MemorialGolf. ?‍♂️#LiveUnderPar pic.twitter.com/ZMp2C5ypuB

— PGA TOUR (@PGATOUR) May 30, 2019

And then rolled in this eagle at the par-5 fifth to tie for the lead.

Vintage.@JordanSpieth rolls in an eagle putt from 35'7".#LiveUnderPar pic.twitter.com/Rru0WnzYib

— PGA TOUR (@PGATOUR) May 30, 2019