Spieth and Thomas have known each other since they were 13 years old, but it is Spieth who has more experience in senior team competitions with two previous Presidents Cup appearances and two US Ryder Cup caps.
Their stance follows US President Donald Trump's recent suggestion to NFL owners that players not standing for the national anthem are "sons of b*tches", unpatriotic, and should be fired.
Hours later, their counterparts back in the U.S. followed suit as players throughout the National Football League sat or knelt before kickoff.
For someone like PGA champion Justin Thomas, playing in his first one, that can be hard to fathom. "I would love to see what kind of person he was then". I don't know what my future holds for me.
The Presidents Cup 2017 features a star-studded cast, and a strong USA team suggests their dominance of the competition may be set to continue.
Added U.S. team member Phil Mickelson: "We have social injustices in this country, and we should all strive to eliminate them". Matches that are tied after 18 holes will be halved.
Jason Day is on a mission to redeem himself at the Presidents Cup in New Jersey this week after blaming himself for the worldwide team's defeat in South Korea two years ago. Since his Presidents Cup debut in 2003 he has won the Masters and spent time atop the world rankings.
Woods has been given clearance for partial golf work; he's been hitting 60-yard shots but hasn't yet been cleared for full swings.
In the interim, his presence this week helps to peel back the onion on a figure who many on the American team view more as myth than mortal.
PGA Tour commissioner Jay Monahan said that White House officials have been out looking at the course and property. It's less like pigs going to a slaughterhouse and more like a team that just needs a few more points to break the long dry spell. I didn't play good.
"They played really well in the practice round".
He has qualified all 11 times in the Ryder Cup.
Justin Thomas, this year's FedEx Cup champion, will partner with Rickie Fowler and they will lead off for the United States when they face the global team during Thursday's first day of the 12th Presidents Cup. The 14-times major champion was back in the public eye for the first time since pleading guilty to a reckless driving charge last month, as a U.S. vice-captain to Steve Stricker at the Presidents Cup.
"I'm hoping that I can redeem myself this week", he said, punctuating the remark with a chuckle. He has age on his side.
"There were some intrepid times, not just for this golf tournament but for life going forward".
"First things first; get my health organised". The close finish seemed to energize a team that had become exhausted of getting hammered time and again. I had a great time last year (at the Ryder Cup) and having a blast this year. "It's just a matter of if he's healthy enough can still feel like he can go".