What 1970 American born tennis player won the 1990 ATP Tour World Championships – Singles?
1991 ATP Tour World Championships – Singles Andre Agassi was the defending champion, but Jim Courier defeated him in the semifinal.
1970 Paris Open The 1970 Paris Open Indoor Championships was a men's Grand Prix tennis tournament played on indoor carpet courts. It was the 3rd edition of the Paris Open (later known as the Paris Masters). It took place at the Palais omnisports de Paris-Bercy in Paris, France and ran from November 9 through November 15, 1970.