Roger Federer defeated Davide Sanguinetti 6-4 6-7 6-3 6-4 in the SUI vs ITA round robin on clay.
Federer R. came through in four sets.
Roger Federer beat Davide Sanguinetti 6-4 6-7 6-3 6-4. Umpiry, "Roger Federer vs Davide Sanguinetti — SUI vs ITA Round Robin", https://umpiry.com/match/1999-04-02/federer-vs-sanguinetti-sui-vs-ita-rr?utm_source=cite (as of 2 April 1999).