DOHA: The 10th round of the Qatargas U-23 League will begin on Sunday with six matches scheduled at the same time. One of the key games pits Al Duhail - who lead with 25 points - against Al Khor - who have 22 points. If Al Duhail pull off a win, then the gap between them and Al Khor will widen moving forward. Al Ahli Stadium will host the key match between the two sides. In another match, Al Arabi (fourth with 17 points) meet Al Sailiya (seventh with 11 points) at Al Khor Stadium. In other matches, Al Rayyan (10th with seven points) meet Al Shahaniya (three points) at Al Sailiya Stadium, eight-placed Al Sadd take on ninth-placed Qatar SC, Al Wakrah battle Al Ahli while Al Nawakhdeh (third with 19 points) face Al Khor at Al Wakrah Stadium. In the last clash, Umm Salal (sixth with 12 points) take on Al Gharafa (fifth with 13 points) at Al Shamal Stadium.