What it means: Koepka is in search of his second PGA Tour win after his breakthrough at the Waste Management Phoenix Open last February. The 26-year-old is also looking to make his first international team and is currently ranked 12th on the U.S. Ryder Cup points list. One back to start the day, Koepka made seven birdies and two bogeys to take a two-shot lead into Sunday. The chase pack includes three big names in Spieth, Garcia and Kuchar, who have a combined 22 Tour titles between them. Spieth, the hometown favorite, is looking to put the Masters behind him, Garcia, the champion in 2004, hasn't won in the U.S. since 2012, and Kuchar, 14th in Ryder Cup points, is looking to make his seventh consecutive start for the United States in international play.
Round of the day: Tim Wilkinson vaulted up 39 spots, from 46th to a tie for seventh, with a bogey-free 7-under 63. He's looking for his first top-10 finish this season after a T-11 in his last start at the Wells Fargo.
Best of the rest: Gary Woodland celebrated his 33rd birthday with a 6-under 64 highlighted by a stretch of four birdies in five holes on Nos. 7-11. Like Wilkinson, Woodland is now tied for seventh and eyeing his first top-10 finish of the season.
Biggest disappointment: Overnight leader Ben Crane was the only player in the top 29 not to shoot even par or better in Round 3. He'll enter the final round five shots back at 11 under.
Shot of the day: Spieth poured in a 19-foot birdie putt at the par-3 17th to cut Koepka's lead to just one and send the Dallas crowd into a minor frenzy. Unfortunately, a bogey at 18 and a par save from Koepka has Spieth two shots back again.
Storyline to watch Sunday: Former Alabama standout Bud Cauley is playing on a medical extension and trying to retain the status he earned his finish in the 2014 Web.com Tour Finals. Including this week, Cauley has 11 starts to make $588,453, but it's unlikely he'll need that many after this week. A solo second-place finish or a two-way tie for second would be enough to push him over. A solo third would net him just under $500K.