Alexandre Strambini defeated Roger Federer 6-4 6-4 in the Switzerland 2 Masters 3 qualifying round on carpet.
Strambini A. took it in straight sets.
Alexandre Strambini beat Roger Federer 6-4 6-4. Umpiry, "Alexandre Strambini vs Roger Federer — Switzerland 2 Masters 3 Qualifying Round", https://umpiry.com/match/1997-10-18/federer-vs-strambini-switzerland-2-masters-3-qf?utm_source=cite (as of 18 October 1997).