Question: What 1970 American born tennis player won the 1990 ATP Tour World Championships – Singles?
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: No