Juan Martin del Potro defeated Wayne Arthurs 7-6 7-6 in the US Open qualifying round of 64 on hard. The upset overturned the form book — Wayne Arthurs came in defending last year's round of 128.
del Potro J. took it in straight sets.
Juan Martin del Potro beat Wayne Arthurs 7-6(1) 7-6(2). Umpiry, "Juan Martin del Potro vs Wayne Arthurs — US Open Qualifying Round of 64", https://umpiry.com/match/2006-08-24/arthurs-vs-potro-us-open-q64?utm_source=cite (as of 24 August 2006).