Owen Keir Davidson was an Australian professional tennis player of the 1960s and 1970s.
Davidson in 1988
The Grand Slam in tennis is the achievement of winning all four major championships in one discipline in a calendar year. In doubles, a Grand Slam may be achieved as a team or as an individual with different partners. Winning all four major championships consecutively but not within the same calendar year is referred to as a "non-calendar-year Grand Slam", while winning the four majors at any point during the course of a career is known as a "Career Grand Slam".
Rod Laver Arena, Melbourne Park.
Court Philippe Chatrier, Stade Roland Garros.
Centre Court, All England Lawn Tennis and Croquet Club.
Arthur Ashe Stadium, USTA Billie Jean King National Tennis Center.