Jansher Khan's comeback from knee surgery suffered a setback when the Pakistani legend limped out of the Cathay Pacific Squash Open after playing just 11 points against local hope Faheem Khan last night. Jansher was playing in his first tournament since undergoing surgery on both knees in April, but the six-time British Open and eight-time world champion retired from the match because of a pulled groin muscle. Jansher startled spectators on Centre Court at the Hong Kong Squash Centre when he indicated to the referee that he could no longer continue after trailing 6-5 against the Hong Kong number one. World number two Jansher showed no signs that things were wrong until he clutched his left thigh in pain after Faheem played a drop shot at 5-5. The 29-year-old from Peshawar took a short rest but then could no longer go on after playing another point. The match lasted six minutes and 22 seconds. A disappointed Jansher indicated that his injury was a temporary setback and that he intends to compete in next month's Al Ahram International tournament in Egypt. 'I underwent knee surgery on April 26 in Lahore, and I had hard training for the last month. My biggest concern was my fitness but I believe I was mentally and physically fit,' said Jansher, who has won 99 professional tournaments over 12 years. 'I pulled a thigh muscle and I will need some time to rest,' he said. Jansher, who began his meteoric rise after winning the 1987 Hong Kong Open, slipped to number two in the world in July for the first time in 10 years. Earlier in March, doctors in England told him he had a torn ligament in one knee, and mis-alignment in the other but he declined surgery until after the British Open where he reached the final, losing to Peter Nicol in straight games. Faheem had mixed feelings about the match, saying that it wasn't the way he liked to beat the Pakistani. 'It's good for my ranking that I beat somebody of the stature of Jansher Khan. But I'm not really happy to win this way. I would feel proud if I beat him fair and square,' said Faheem, who reached the second round of the tournament for the second time. Faheem said Jansher might have made his comeback too soon. 'I think he should have rested longer. Another two to three months rest would do him good. It's always difficult to make a comeback from injury. You need proper rest,' said Faheem. 'I could see that he was struggling a bit. He was hitting the ball quite well but he was a bit slow on court. 'But I didn't think he would give up so quickly,' said the Pakistan-born player, who is nursing a sore right knee. 'I'm still in a bit of pain. Four days ago, I was limping really badly. 'I'm still undergoing physiotherapy two to three times a day,' he added. England's Chris Walker, the world number 11, also failed to clear his first-round hurdle, losing to 53rd-ranked Rodney Durbach of South Africa, who came back from a game down to score an 11-15, 15-12, 15-8, 15-12 victory on Court Nine. But other seeded players in action last night didn't have too many problems in progressing to the second round. Canada's Jonathon Power, the world number three, indicated his good form by defeating Australia's David Palmer, 15-6, 15-9, 15-4. World number seven Ahmed Barada of Egypt coasted to a 15-11, 15-9, 15-8 victory over Sweden's Daniel Forslund in 47 minutes. England's world number six Simon Parke dropped a game but still proved too strong for Finland's Ville Sistonen in an energy-sapping 15-6, 15-17, 17-15, 15-8, 52-minute victory. Power is also coming back from injury and has yet to fully recover from ankle problems. 'I'm not playing to my best form. I'm still struggling a bit with my ankle but I think things will get better for me,' said the 24-year-old former world junior open runner-up, who rose from the junior ranks to become the number one player in North America. Meanwhile, Australia's Byron Davis took two gambles and lost as he bowed out to Ireland's Derek Ryan in an extraordinary first-round encounter. Davis took a gamble by setting to one point at 14-14 in both the fourth and fifth games. But he lost both times, crashing his return into the nick for world number 19 Ryan to score an exciting 15-8, 13-15, 9-15, 15-14, 15-14 victory on Centre Court. England's Del Harris also bowed out of the tournament after he was beaten by Austria's Joseph Kneipp, who posted a 12-15, 15-7, 15-12, 17-16 victory on Court Nine. In tonight's games, tournament favourite Nicol will resume his title bid when he takes on England's Stephen Meads, while world champion Rodney Eyles takes on fellow Australian Craig Rowland for a place in tomorrow's quarter-finals. Durbach will be hoping to continue his giant-killing form against in-form Barada,while Power faces Ryan.