Bani Yas held on with ten men after Joao Victor Wesner's dismissal to beat Khorfakkan 2-1 in a pulsating game at Saqr bin Mohammad al Qassimi Stadium on Friday.
Bani Yas were awarded a penalty kick in the 30th minute, and Nicolas Gimenez managed to put his side ahead after stepping up and sending the goalkeeper the wrong way.
Three minutes before the two clubs headed to the dressing rooms for the break, Gastón Suarez doubled his side's lead after firing a superb long-range strike into the back of the net.
Eleven minutes after the hour-mark, Fabio Goncalves reduced the deficit when he timed his run perfectly to head in Ali Aldhanhani's cross.
The victory means that Bani Yas are in the ninth spot with 18 points, while Khorfakkan sit tenth with 15 points.