The sixth seed reached the last eight after being awarded a walkover win against Tommy Haas.
Result: Tommy Haas withdraws from Shanghai Masters
Juan Martin Del Potro progresses to the quarter-finals of the Shanghai Masters after Tommy Haas withdraws with a back injury.
Share this article now:
Result: Haas safely through at Shanghai Masters>
You May Like
Recomended from Sports Mole
Follow @SportsMole for the latest breaking news stories, and follow @sm_headlines to get every headline from Sports Mole