Juan Martin del Potro defeated Michal Navratil 6-4 6-2 in the Stuttgart qualifying round of 32 on grass.
del Potro J. took it in straight sets.
Juan Martin del Potro beat Michal Navratil 6-4 6-2. Umpiry, "Juan Martin del Potro vs Michal Navratil — Stuttgart Qualifying Round of 32", https://umpiry.com/match/2006-07-15/navratil-vs-potro-stuttgart-q32?utm_source=cite (as of 15 July 2006).