Sharjah qualified for the play-off after beating Bangladesh's Bashundhara Kings 2-0, with goals from Luan Pereira in the 45th and 71st minutes.
Sharjah is scheduled to meet Tractor next week for a spot in the group stage.
On August 22, Tractor is to host the Emirati football team at the Yadegar-e Emam Stadium in Iran's Tabriz.
TM/TSNM