Byeong-hun An shot a seven under par 65 on day three of the Abu Dhabi HSBC Golf Championship to move into contention.
The South Korean did not drop a shot on his way round and was boosted further by replicating Rory McIlroy's hole in one.
McIlroy registered his first ever professional ace on Friday on the par three 15th, and An did the same on Saturday.
With McIlroy third on the overnight leaderboard and still to tee off along with other pacesetters Martin Kaymer and Thomas Pieters, the likes of An took the chance to make some early inroads.
England's Oliver Wilson was with him, signing for a six under 66 to sit eight under, a shot behind An and five behind outright leader Kaymer.
European Ryder Cup hero Jamie Donaldson's four under round left him alongside Wilson, while England's Seve Benson and Andy Sullivan posted matching 67s to climb the ladder.
