A pair of titles will be on the line for ONE Championship next month. ONE Championship 160 is set for Aug. 26 at Singapore Indoor Stadium in Singapore, and the promotion has a new main event. Lightweight champion Rae Yoon Ok (16-3) will take on former champ Christian Lee (15-4) in a rematch, ONE announced this week. The previously announced headliner for the card between featherweight titleholder Thanh Le (13-2) and challenger Tang Kai (14-2) will remain on the card in the co-main event