LAHORE Pakistans leading tennis player Aisamul Haq Qureshi reached the quarter-finals in the doubles event at the Legg Mason Tennis Classic in Washington DC. Partnering with Indias Rohan Bopanna, Aisam overcame seasoned opponents Martin Damm and Oliver Marach from the Czech Republic and Austria respectively. The match was a closely contested affair, decided in the tie-breaker after each team won a set by a single break of serve. Aisam and Rohan raised their game at the crucial moment and secured the tie-breaker 10-4. In the next round, they face the Bryan Brothers of the USA.