Danny Lee capitalised from Justin Thomas on a Mistake to Catch a share of the lead heading into the final round of This CJ Cup .
A three-shot swing at the 18th watched Thomas create bogey after rapping his approach into the hazard and Lee pit a long-range eagle.
Thomas, chasing a second win in 3 years at the event, mixed six birdies with four bogeys through his 70, while Lee moved into a share of the advantage with a 68.
Cameron Smith is three strokes off the pace in third and Wyndham Clark a further shot back in tied-fourth before Byeong Hun An and leads the chasing pack.
Beginning the day with a lead, Thomas birdie the ninth to reach the turn in 35 after which bounced back by a bogey in the par-three next to hole a.
Byeong Hun An moved alongside Thomas following a following a front-nine 34 at the 10th, only to triple-bogey the next after locating trees.
Until dropping three shots at the first two holes of his back nine, because Thomas posted birdies either side of a blemish at the 13th lee obtained within one of their guide.
Thomas rolled at a 12-footer at the 16th to retain his advantage within Lee, who birdied the 12th and 15th, only to come across the water with his next shot to the par-five last.
The 2017 champion then discovered the rough at the rear of the green and got up and down to avoid dropping more than 1 shot, even as Lee drained a 60-footer from more than a ridge to generate an eagle.
English pair Ian Poulter and Tyrrell Hatton are from the team six off the pace at tied-seventh that contains Graeme McDowell and US Open winner Gary Woodland, whilst world no 1 Brooks Koepka withdrew before the third round.
Who will win the CJ Cup? View the final round live on Sky Sports Main Event along with Sky Sports Golf from 3am on Sunday!
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