Harrington focused on historic Grand Slam year in 2010
The 38-year old Dubliner is determined to add the Masters and the US Open titles to his brace of Open wins and his US PGA triumph.
If he pulls it off, he will become just the sixth player in the history of the game to win all four majors and join Gene Sarazen, Ben Hogan, Gary Player, Jack Nicklaus and Tiger Woods in the pantheon of greats.
