Career Grand Slam means that the four major tennis championships (i.e. Australia Open, French Open, Wimbledon and US Open) are won in a lifetime. If all the four championships are won during a single year, it is called single season Grand Slam. As of today (13/06/2012), there are 14 player have achieved single season Grand Slam while there are 17 players (7 male player and 10 female players) have won Career Grand Slam for singles.

The latest players who have completed the career grand slam are Rodger Federer (2009), Rafael Nadal (2010), Serena Williams (2003) and Maria Sharavopa (2012). Check the full list here.