Spieth in contention as Munoz leads in Texas

Sebastian Munoz takes a one-shot lead into the final round of the AT&T Byron Nelson, with Jordan Spieth and Justin Thomas both in contention after another low-scoring day in Texas.

Munoz mixed an eagle and five birdies with a lone bogey to card a six-under 66 at TPC Craig Ranch and move to 21 under, a shot clear of Spieth, keeping the Colombian in pole position to challenge for a first PGA Tour victory since 2019.

Chile's Joaquin Niemann is two strokes back in third after back-to-back 65s, while a round-of-the-day 61 from James Hahn lifted him to tied-fourth and 18 under alongside Thomas.

"I'm just really pleased, I've been very patient this year," Spieth said. "I felt like my game's been in a better place than last year and I didn't really have anything to show for it other than a second at Pebble. I feel some momentum for sure, but I do feel like I still got some parts of my game that actually need to sharpen a little bit."

Heading into the weekend tied for the lead, Munoz followed a 40-foot birdie at the second with a hole-out eagle from a greenside bunker at the driveable sixth hole to pull ahead of a congested leaderboard.

Munoz took advantage of the par-five ninth for the first of back-to-back birdies and added further gains at the 12th and 14th, although he saw his lead cut to a single stroke when he bogeyed the 16th and failed to convert a nine-foot birdie opportunity at the par-five last.

Spieth holed a long-range birdie at the third and charged up the leaderboard with five birdies in a six-hole stretch from the fifth, with two-putt birdies at the 12th and 14th taking him to 20 under with four holes to play.

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The three-time major champion,