Ivan Lendl is an athlete.
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 . The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . 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 .