Seventh seed Yasir Butt raced into the last four of the President PSF International after upsetting fellow Pakistani Shamsul Islam Khan in just 17 minutes in today's quarter-finals of the PSA Tour event at the Jansher Khan Complex in Abbottabad, Pakistan.

The 18-year-old from Lahore brushed aside his fourth-seeded opponent 11-6, 11-4, 11-3 and will now face compatriot Mansoor Zaman for a place in the final. Second seed Zaman defeated unseeded opponent Safeer Ullah Khan 11-5, 11-10 (2-0), 8-11, 11-7.

The other semi-final will also be an all-Pakistan affair, between top seed Aamir Atlas Khan and third seed Farhan Mehboob. Khan, the 16-year-old nephew of the centre's patron Jansher Khan, dismissed sixth seed Bilal Zaman 11-5, 11-7, 11-6, while Mehboob, the Asian Junior Champion, fought back from two games down to overcome Majid Khan 10-11 (0-2), 8-11, 11-8, 11-6, 10-5 after the fifth seed retired injured at match-ball in the decider.

Quarter-finals:
[1] Aamir Atlas Khan (PAK) bt [6] Bilal Zaman (PAK) 11-5, 11-7, 11-6 (24m)
[3] Farhan Mehboob (PAK) bt [5] Majid Khan (PAK) 10-11 (0-2), 8-11, 11-8, 11-6, 10-5 ret. (68m)
[7] Yasir Butt (PAK) bt [4] Shamsul Islam Khan (PAK) 11-6, 11-4, 11-3 (17m)
[2] Mansoor Zaman (PAK) bt Safeer Ullah Khan (PAK) 11-5, 11-10 (2-0), 8-11, 11-7 (32m)