Premise: ATP Finals . The ATP Finals are the season-ending championships of the Association of Tennis Professionals ( ATP ) World Tour , featuring the top eight singles players and doubles teams of the ATP Rankings . The French Open , often referred to as Roland-Garros ( [ ʁɔlɑ̃ ɡaʁɔs ] ) , is a major tennis tournament held over two weeks between late May and early June at the Stade Roland-Garros in Paris , France . Ivan Lendl . Lendl first attained the world No. 1 ranking on February 28 , 1983 and bolstered his claim to the top spot when he defeated John McEnroe in the 1984 French Open final .
Hypothesis: Ivan Lendl has played in a tournament.
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