The Travelers Championship at TPC River Highlands has a great field following the U.S. Open as players look to lock down a huge payday.

Jeeno Thitikul closed with back-to-back birdies in a two-under par 70 on Friday to stretch her lead to three strokes as sweltering heat and high winds again tested golfers at the Women's PGA Championship in Texas.

Scottie Scheffler was leading by two strokes late in his second round Friday at the Travelers Championship, but a double bogey at the par-4 17th dropped him into a share of the top spot with Justin Thomas.

The Travelers Championship leaderboard bunched together with high-speed winds on Friday, though Tommy Fleetwood and Justin Thomas soared to the front of the pack.

Si Woo Kim called it quits Friday during his second round at TPC River Highlands, citing a back injury. Kim shot 1-over 71 in the first round and was 7-over through 12 holes when he withdrew.

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

If Jordan Spieth is forced to withdraw from a PGA Tour event, there has to be a pretty significant reason. Since turning pro in 2012, Spieth, a three-time major championship winner, had never withdrawn from a tournament.