Spieth walked over to a young golf fan who wanted his autograph, and he duly obliged like he always does.
Once Spieth, a fanatical United States football fan, found out the nationality of the youngster, he then started some World Cup trash talk.
"So we don't like each other until we get out of the group stage right?!" joked Spieth, who then continued the interaction with the youngster in a brilliant little clip ahead of the 20-man unofficial PGA Tour event.
WATCH THE VIDEO BELOW
First class as always, Jordan...
To add context to the above clip, England currently top Group B ahead of the final round of group matches that take place on Tuesday evening.
England have 4 points after two games following a 0-0 draw with USA last week.
Iran have 3 points, USA have 2 points and Wales have 1 point.
USA need to beat Iran tonight in order to progress to the knockout stages, while England will guarantee top spot in the group with a victory over Wales.
England just need to avoid a 4-0 defeat to Wales in order to progress to the next round.
He will be on site though to help with the running of the tournament and to present the trophy on Sunday evening.
Jon Rahm, who recently won a third DP World Tour Championship title in Dubai, is the tournament favourite in a star-studded field that also includes the likes of Spieth, Scottie Scheffler, Justin Thomas and Tony Finau.
He is also scheduled to play alongside his son Charlie Woods in the father-son PNC Championship from December 17 to 18.