Question: Johan Kriek's most memorable wins include victory over a tennis player who has been cited as one of the most what?
Sentence (from "Andre Agassi"): Described by the BBC upon his retirement as "perhaps the biggest worldwide star in the sport's history", Agassi compiled performances that, along with his unorthodox apparel and attitude, saw him cited as one of the most charismatic players in history.
Relevant evidence: Yes