Mats Wilander pays tribute to Flavia Pennetta following her US Open victory over Maria Sharapova.
Sharapova, who won at Flushing Meadows in 2006 but has not won a Grand Slam title since the 2008 Australian Open, was one of the favourites to win the crown after winning a lead-up event in Cincinnati.
But the Russian made a whopping 60 unforced errors and served 12 double faults, including two in the final game which she needed to hold to stay alive.
Pennetta, seeded 26th, raced to a 4-0 lead en route to winning the opening set. But Sharapova, who made 60 unforced errors and served 12 double faults, won the second back then recovered from 4-1 down to square the final set at 4-4.
Pennetta regained her composure to hold her serve to lead 5-4 then broke the Russian again to seal victory and advance to a fourth round clash with China's Peng Shuai.