Complex sentence: Yzaga played on the professional tour from 1984 to 1996, reaching career-high rankings of World No.18 in singles and World No.54 in doubles (both in 1989).
Split into simpler sentences: Yzaga played on the professional tour from 1984 to 1996. Yzaga reached career-high rankings of World No.18 in singles and World No.54 in doubles (both in 1989).