Agustin Garizzio defeated Roger Federer 4-6 6-0 6-4 in the Switzerland 1 Masters 2 round of 16 on clay.
Garizzio A. came through in three sets.
Agustin Garizzio beat Roger Federer 4-6 6-0 6-4. Umpiry, "Agustin Garizzio vs Roger Federer — Switzerland 1 Masters 2 Round of 16", https://umpiry.com/match/1997-08-23/federer-vs-garizzio-switzerland-1-masters-2-r16?utm_source=cite (as of 23 August 1997).