Rory McIlroy surrendered a two-shot lead at the DP World Tour Championship, with Shane Lowry one of those to rein him in as Collin Morikawa kept himself at the top of the Race to Dubai standings.
Three-time Race to Dubai winner McIlroy carded a brilliant 65 on Thursday, but he found the water on the last and his double bogey meant he recorded a two-under par 70, giving up the lead heading into the weekend at Jumeirah Golf Estates in the process.
Lowry, the 2019 Open champion, overtook McIlroy at the top of the leaderboard with a bogey-free 65, with American John Catlin left to lament a bogey on the third that ultimately cost him the lead. The duo are joined on 10 under by Sam Horsfield, who followed up Thursday's 68 by going around in 66.
Horsfield had to recover from dropping shots on the 16th and 17th, with a thumping, 369-yard drive setting him up nicely to birdie on the last and take a share of the lead.
"It's two more days left and then the end of a long year-and-a-half, I suppose, long couple of years," said Lowry.
"I'm looking forward to giving everything and leaving it on the course this weekend and hopefully I'm there near the top of the leaderboard come Sunday afternoon."
Meanwhile, history hunting Morikawa kept himself in contention with a second straight score of 68 and sits level on eight-under with Martin Kaymer, one shot adrift of McIlroy and Alexander Bjork, whose sole victory on the European Tour came at the 2018 China Open.
The American currently holds the lead in the Race to Dubai by three shots. If he can hold onto his advantage, he will be the first American to be crowned European Tour champion.
In Morikawa's opinion, however, the best form of defence is attack, as he looks to seal his place in the record books by clinching victory in the United Arab Emirates.
"I'm aware but I've got to focus on the weekend," The Open winner said. "I want to win this tournament. That's all I care about, winning this tournament and everything else will kind of settle itself.
"That's my focus. We've played a decent two days and we've got two more rounds to go."
Tommy Fleetwood, who won the Tour in 2017, endured a frustrating day as he went round level par, leaving him tied with six others, including Ian Poulter, on two under.