Grand Slam (tennis) tennis ball, Martina Navratilova finally did it." Although the ITF recognizes what is now unofficially known as the "non-calendar year Grand Slam" on its Roll of Honour, no subsequent player to win four or more majors in a row—Steffi Graf, Serena Williams, or Novak Djokovic—has received bonus prize money. Combining "the" Grand Slam and non-calendar year Grand Slam, the total number of times that players achieved the feat (of being the reigning champion in all four majors) expands to 18. Three women have won four or more consecutive major titles since 1970, with Navratilova taking six in a row in
Jerzy Janowicz pro circuit following his run to the final albeit as a qualifier, of the 2012 Paris Masters, during which he defeated five such top-20 players as Andy Murray and Janko Tipsarević. Despite losing out to David Ferrer in the finals, he made his top-30 debut in the ATP Rankings and became the highest-ranked Polish tennis player. Janowicz became the first Polish male to reach a Grand Slam semifinal at the 2013 Wimbledon Championships, eventually losing out to the eventual champion, Andy Murray. He struggled with a major knee injury during the 2016 season, which led to significant drop in rankings