Mats Wilander defeated Mikael Pernfors 7-6 3-6 1-6 7-6 6-4 in the US Open round of 64 on hard. The upset overturned the form book — Mikael Pernfors came in defending last year's round of 128.
Key context
Match story:Mats Wilander closed it out in five sets, 7–6 3–6 1–6 7–6 6–4.