Mark Nielsen defeated Pietro Angelini 6-2 1-6 6-2 in the Uruguay Masters 1 qualifying round on clay.
Nielsen M. came through in three sets.
Mark Nielsen beat Pietro Angelini 6-2 1-6 6-2. Umpiry, "Mark Nielsen vs Pietro Angelini — Uruguay Masters 1 Qualifying Round", https://umpiry.com/match/1997-11-01/angelini-vs-nielsen-uruguay-masters-1-qf?utm_source=cite (as of 1 November 1997).