The pair attended their first PNC Championship in December 2020, when Tiger watched Charlie hit a tee shot. Source: Getty Images See more: Tiger Woods is now a billionaire — here's how he spends ...

(Photo by Andrew Redington/Getty Images) AUGUSTA, GA - APRIL 11: Tiger Woods of the USA plays his tee shot on the third hole during the final round of the Masters at the Augusta National Golf Club ...

(Photo by Mike Ehrmann/Getty Images) ORLANDO, FLORIDA - DECEMBER 22: Charlie Woods of the United States prepares to putt on the ninth green as his father Tiger Woods of the United States looks on ...

Tiger Woods proved to be a motivation for JJ Spaun's U.S. Open win after a rain-soaked course challenged him to the edge.

(Photo by David Cannon/Getty Images) David Cannon/Getty Images ORLANDO, FLORIDA - DECEMBER 17: EDITORS NOTE: This image is part of a swing sequence; Tiger Woods of The United States plays his tee shot ...