A closing eagle three put Rory McIlroy in the running after the first round in Dubai on Thursday, with Mike Lorenzo-Vera one shot ahead.
Jumeirah Golf Estates is a happy hunting ground for Rory McIlroy, who is in the mix again in Dubai.
Bernd Wiesberger has the upper hand in the Race to Dubai but Tommy Fleetwood, winner in 2017, is hot on the Austrian's heels.
The European Tour cited fears over safety as the Hong Kong Open was postponed on Wednesday.
A new caddie will be assisting Rory McIlroy in Dubai as the world number two aims to finish an outstanding 2019 on a winning note.
Tommy Fleetwood sparkled in Sun City with a magnificent final round and held his nerve in a play-off to claim a fifth European Tour title.
Zander Lombard recovered from a double bogey to regain the lead at Gary Player Country Club after Louis Oosthuizen had hit the front.
South African Zander Lombard sits on top of the leaderboard after the second round of the Nedbank Challenge on Friday.
Louis Oosthuizen was awake at 3am with kidney stone pain, but the South African later produced a superb round to lead the Nedbank Challenge.
Tommy Fleetwood was approaching the end of his first round at Sun City when a group of mongooses took a liking to his golf ball.