Nour El Sherbini marched on at the World Squash Championships ©PSA

Nour El Sherbini continued her charge for a third Professional Squash Association (PSA) World Championships title in a row, and a fifth in six years, by beating home American player Olivia Fiechter in Chicago.

The Egyptian won the third round clash 11-4, 14-12, 11-7 at the University of Chicago to move into the quarter-finals.

World number 20 Fiechter caused some problems but 25-year-old El Sherbini, the top seed, powered on.

"She was very tough, it's the first time playing each other despite being the same age, we never had the chance to play each other," said El Sherbini.

"She pushed me very hard until the last point. 

"Actually, I think I needed a tough match like this to get myself ready and wake up my body a little bit. 

"I lost a little concentration in the second game, but I am really glad I won in three in the end and that is the most important thing for me."

El Sherbini will play England's Sarah-Jane Perry in the last eight after the sixth seed came from behind to beat India's 10th seed Joshna Chinappa 9-11, 11-6, 11-7, 11-7.

American home hopes continued as sixth seed Amanda Sobhy came through in four against Canada's Hollie Naughton, 11-5, 11-8, 8-11, 11-5.

She will play Egypt's fourth seed Hania El Hammamy in the quarter-finals after her 11-9, 14-12, 11-9 win over Nele Gilis of Belgium.

Tarek Momen's hopes for back-to-back world titles are still alive ©PSA
Tarek Momen's hopes for back-to-back world titles are still alive ©PSA

In the men's draw, Egypt's top seed and 2018-2019 world champion Ali Farag was comfortable against Colombia's 10th seed Miguel Rodriguez, winning 11-3, 11-5, 11-5.

His last eight opponent will be Peru's Diego Elias, the eighth seed who knocked out England's George Parke 11-6, 13-11, 11-4.

Defending world champion Tarek Momen, seeded third, knocked out Egyptian counterpart Youssef Ibrahim 11-2, 11-9, 11-8.

That sets up a mouth-watering quarter final with Egypt's fifth seed Marwan ElShorbagy, who came from behind to win 8-11, 11-4, 11-3, 11-9 against France's Gregoire Marche.

"I came into this tournament and I have my eyes set on that trophy again," said Momen.

"I want to win it just as bad as I did the first time. 

"I am not thinking about being defending champion, it is something I have, it will always be mine, forever, so I just need to have more good memories and win more titles. 

"For me, it is a new tournament and I am just trying to win it."

The remaining third round matches will be played tomorrow.