South Korea's Si Woo Kim withdrew from the Travelers Championship during second-round play Friday due to a back injury.

The Travelers Championship is the final Signature Event of the season on the PGA Tour, which means there's no cut and lots of money up for grabs.

A rare occurrence for the Dallas, Texas native who has made over $65 million throughout his career. "Jordan Spieth has withdrawn from the Travelers Championship due to injury," read the report. "His first WD in 297 PGA Tour starts.

The last four major champs will be in the field at the Travelers. Masters winner Scottie Scheffler is paired with U.S. Open champ J.J. Spaun.

Scottie Scheffler birdied four of his first six holes Thursday en route to an 8-under 62, sharing the lead with Austin Eckroat at the Travelers Championship.