Grand Slam (tennis) is all about is like a baseball player believing that he 'hit for the cycle' after slugging a single, double and triple in the first game of a doubleheader and a home run in his first time at bat in the second game." Despite seeming clarity from the ITF, some journalists suggested that the sport's organizing body had turned its back on history and changed the "rules" of tennis by redefining a Grand Slam. Such confusion continued for years. For instance, when Steffi Graf completed the Grand Slam in 1988, George Vecsey wrote, "Even the International Tennis Federation, which should
Grand Slam (professional wrestling) formats, three of whom automatically became modern Grand Slam champions at the introduction of the modern format (with the same titles they won while becoming original Grand Slam champions), and two who became modern Grand Slam champions after the modern format was introduced (with different titles won to complete both formats). The first Impact Wrestling Grand Slam winner, then known as the Total Nonstop Action Wrestling (TNA) Grand Slam, was crowned on March 15, 2009, at TNA's Destination X pay-per-view event. At said event, then three-time TNA Triple Crown champion A.J. Styles defeated Booker T for the TNA Legends Championship.