Matt Kuchar shares the lead with Camilo Villegas after three rounds of the World Wide Technology Championship in Mexico - despite carding a quadruple bogey.
Kuchar, chasing a first PGA Tour win since the Sony Open in Hawaii in January 2019, carded a five-under 67 in Cabo San Lucas on Saturday to match Villegas on 19-under par after 54 hole.
However, the 45-year-old was rocked by an eight on the par-four 15th and then a bogey at 16 as he dropped five shots in the latter part of his back nine having been 24-under par after three birdies on the trot between 12 and 14.
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Kuchar was 10-under for the day and eyeing a potential 59, only to then hook his tee shot at 15 into the trees, take a penalty and then twice fail to get up and down onto the green.
"This course has some trickiness to it," Kuchar said after a round in which he shot nine birdies and an eagle. "That 15th hole is one I think we all have circled. I think this could be a big number and for me it was today.
"I'm pretty good at letting that stuff roll off my back. I let that one roll off my back and [I will now] go try to play some good golf (Sunday)."
Villegas' three-under 69 featured seven birdies, including five on his back nine, and four bogeys as he continued his push for a first PGA Tour title since the Wyndham Championship in August 2014.
The Colombian, 41, said: "My putter wasn't as hot, but I think overall it was positive. Matt [Kuchar] was kind of running away, but golf is weird and he came back to us.
"We'll be back (Sunday), play good, keep staying aggressive. There's a lot of low scores on this golf course, see what happens."
Erik van Rooyen is third, one shot back on 18-under, with Mackenzie Hughes - who fired a nine-under 63 in round three - Justin Suh and Will Gordon tied fourth on 17-under.
Watch the final round of the World Wide Technology Championship live on Sky Sports Golf from 8pm on Sunday.
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