ISLAMABAD: Youngster Yousaf Khan stunned Muddassar Murtaza on his way to make it to the quarter-finals of the men’s singles in the second Chairman POF Board National Ranking Tennis Championships on Monday at the POF Tennis Complex in Wah Cantonment. Yousaf beat Muddassar 7-6 (4), 6-3 to make it to the last eight stage where he will meet experienced Shahzad Khan. Shahzad prevailed over Ijaz Khan 6-2, 6-2. Another youngster Mohammad Shoaib also showed his class beating Ahmed Babar 6-3, 6-4 on his way to the quarters. Abdal Haider yet again lost meekly this time by Aman Atiq. Top seed Aqeel Khan and Muzammil Murtaza also checked into the last eight stage. Results: Men’s singles: Aqeel Khan bt Saqib Umer 6-2, 6-1; Muzammil Murtaza bt Asad Ullah 6-3, 6-1; Yasir Khan bt Jibranul Haq 6-1, 6-1; Yousaf Khan bt Muddassar Murtaza 7-6 (4), 6-3; Shahzad Khan bt Ejaz Khan 6-2, 6-2; Mohammad Abid bt Aqib Umer 6-0, 6-1, Mohammad Shoiab bt Ahmed Babar 6-3, 6-4, Aman Atiq bt Abdal Haider 6-3, 7-5. Boys’ Under-18 singles: Saqib Umer bt Rayan Ahmed 6-0, 6-0; Sami Zaib bt Samad Areejo 7-6 (5), 6-4; Asad Ullah w/o Hamza Mazhar; Musa Chaudhry bt Uzair Khan 6-2, 7-6 (6); Muhammad Abdullah bt Hasham Khan 6-3, 6-4; Muhammad Shoaib bt Hassan Ali 6-0, 6-1; Aqib Umer bt Ibrahim 6-1, 6-1; Yousaf Khan bt Kashan Umer 6-1, 6-2. Boys’ Under-14 singles: Sami Zaib bt Talha Khan 4-0, 5-3; Uzair Khan w/o Ayan Ehtizaz; Faizan Fayyaz w/o against Saif Ali; Farman Shakeel bt Kashan Umer 4-0, 3-5, 5-3; Hasham bt Muhammad Huzaifa 4-2, 4-2; Hamza Roman bt Mehmood Shah 4-0, 4-0; Ahmed Ali Khan w/o Nalain Abbas. Boys’ and girls’ Under-10 singles: Hamza Roman bt Ali Zain 4-0, 4-1; Farah bt Hamza Arif 4-2, 4-2; Muhammad Zubair bt Rizwan 4-0, 5-3; Shahsawar bt Essa Zubair 4-0, 4-0.