Egypt top seed and World number two Ramy Ashour has again been beaten by injury as he was forced to quit the World Open quarter finals against Frenchman Gregory Gaultier on Friday.
Ashour was heavily taped on both hamstrings at the beginning of the game after struggling with pains on Thursday against Alister Walker 3-2.
He had a slightly better start but lost the first game 11/8 before being completely outrun in the second 11/1.
The Egyptian champion could barely move on the court. He tried again in the third but was frustrated by the pain and left in furry and upset just after the first point.
Earlier in the day, Karim Darwish defeated David Palmer from Australia 3-0 11/9, 11/7 and 11/1.
The Egyptian champions seemed in great physical shape after recovering from an injury that made him struggle over the past few weeks.
He gave the former Australian World champion a lovely farewell as he has announced that he will quit after this impressive quarter final tie against Darwish.
The World number three will play the defending champion and World number one Nick Matthew from England in the semi-finals on Saturday.
Meanwhile four-time world champion Amr Shabana lost 3-1 to James Willstrop. The Englishman had a quick and easy 2-0 lead 11/8 and 11/2. Shabana fought hard in the third to pull one back 13/11 but totally collapsed in the fourth with an 11/1 score line.