Richard Fromberg defeated Jan Apell 4-6 6-1 6-3 in the Prague round of 16 on clay.
Fromberg R. came through in three sets.
Richard Fromberg beat Jan Apell 4-6 6-1 6-3. Umpiry, "Richard Fromberg vs Jan Apell — Prague Round of 16", https://umpiry.com/match/1992-08-10/apell-vs-fromberg-prague-r16?utm_source=cite (as of 10 August 1992).