"He's like family to me," Spieth said. "So it was very important."
VIDEO WATCHING: What do players chat about during a practice round?
If you're Zach Johnson, it's humorous videos on the Internet.
Walking up the 13th fairway with Matt Kuchar, Johnson brought up an NBC promo starring comedian Jason Sudeikis as an American coach trying to grasp the differences between the NFL-style football and English soccer.
"Have you seen that?" Johnson asked Kuchar. "It's sooo funny!"
Johnson shouted up to his caddie.
"Have you got your phone?"
Then, as they walked to hit their next shot, Johnson furiously worked the phone to locate the video so he could show it to Kuchar.
SPANISH DUEL: There's always a few friendly wagers during the practice rounds, though usually the money changes hands after the players get back to the clubhouse.
Miguel Angel Jimenez paid up right away.
After fellow Spaniard Pablo Larrazabal wrapped up whatever bet they had going at the 18th hole, Jimenez handed some money to his friend. Larrazabal proudly held up one of the bills for the fans in the stands.
As he signed autographs, Larrazabal wouldn't say how much he took off Jimenez. But he patted his heart and said, "It's always a pleasure to beat Miguel. It's not easy."
TOP RANK: The PGA Championship stands to be the third-strongest field since the world ranking began in 1986. The tournament has 99 of the top 100 players in the world this week, matching the record set last year at Kiawah Island.
The difference in strength is the player missing this year — Louis Oosthuizen at No. 16 — was higher ranked that the one player missing last year, Ben Crane.
The strongest field was in 2002 at Hazeltine. Even though it had only 98 of the top 100, those two players were toward the bottom of the ranking. The PGA Championship had the top 96 players in the world that week.