Complex sentence: In 1931, Nüsslein won the German Pro Championships final over Roman Najuch, who previously had won this title 11 consecutive times.That same year, he played tennis legend Bill Tilden in Europe, taking him to 5 sets.
Split into simpler sentences: In 1931, Nüsslein won the German Pro Championships final over Roman Najuch, who previously had won this title 11 consecutive times. In the same year, he played tennis against legend Bill Tilden in Europe, taking him to 5 sets.