Karachi: Pakistan brothers Aamir Atlas Khan and Danish Atlas Khan will meet in the semi-finals of the DHA Karachi International Squash Championship after prevailing in today's quarter-finals of the PSA World Tour Challenger 10 event at the Asif Nawaz Squash Complex in Karachi, Pakistan.

Top seed Aamir was taken the full distance by 16-year-old fellow countryman Syed Ali Shah Bokhari, hero of Pakistan's national team victory at the recent Asian Junior Championships in Korea.

The 22-year-old Pakistan number one had to fight back from 2/1 down overcome his young opponent 11-7, 9-11, 4-11, 11-2, 11-5 in 55 minutes.

"Ali Bukhari is an up-and-coming player," said Aamir afterwards. "You have to be 100% fit to compete against these youngsters.

"I have a problem with my adductor but decided to keep playing. I am pleased to get through to the semi in this condition," added the world No51. "Hopefully it doesn't come back to haunt me tomorrow."

Danish defeated UAE-based compatriot Khawaja Adil Maqbool 11-9, 12-10, 5-11, 11-5 in 36 minutes.

Unseeded Farhan Zaman will face second seed Nasir Iqbal in the other semi. Zaman, a 20-year-old from Peshawar, ended Nosherwan Khan's run, beating the 18-year-old qualifier 9-11, 11-8, 11-7, 11-6.

Iqbal, also 18, needed 42 minutes to get the better of Aqib Hanif 11-8, 11-8, 11-7.

RESULTS: PSA Challenger 10 DHA Karachi International Championship, Karachi, Pakistan

Quarter-finals:

[1] Aamir Atlas Khan (PAK) bt Syed Ali Shah Bokhari (PAK) 11-7, 9-11, 4-11, 11-2, 11-5 (55m)

[4] Danish Atlas Khan (PAK) bt Khawaja Adil Maqbool (PAK) 11-9, 12-10, 5-11, 11-5 (36m)

Farhan Zaman (PAK) bt [Q] Nosherwan Khan (PAK) 9-11, 11-8, 11-7, 11-6 (43m)

[2] Nasir Iqbal (PAK) bt Aqib Hanif (PAK) 11-8, 11-8, 11-7 (42m)