Jan. 27, 2010; La Jolla, CA, USA; Phil Mickelson chips to the green of the First hole on the North course with a pre-1990...

January. 31, 2010; La Jolla, CA, USA; Phil Mickelson smiles to the crowd after making birdie on the 17th hole during the final round of...

Defending tournament champion Phil Mickelson speaks during a news conference on the Pro-Am day of the Northern Trust Open golf...

Defending tournament champion Phil Mickelson speaks during a news conference on the Pro-Am day of the Northern Trust Open golf...

Phil Mickelson signs autographs after the second round of the Farmers Insurance Open golf tournament at Torrey Pines...

Phil Mickelson signs autographs after the second round of the Farmers Insurance Open golf tournament at Torrey Pines...

January. 31, 2010; La Jolla, CA, USA; Phil Mickelson after just missing his putt on the fifth hole during the final round of the Farmers...

January. 31, 2010; La Jolla, CA, USA; Phil Mickelson after just missing his putt on the fifth hole during the final round of the Farmers...

LA JOLLA, CA - JANUARY 30: Phil Mickelson hits his second shot on the fifth hole at the South Course at Torrey Pines Golf...

LA JOLLA, CA - JANUARY 30: Phil Mickelson reacts to a missed birdie putt on the 3rd hole during the third round of the...

Lefty switcheroo

January. 30, 2010; La Jolla, CA, USA; Phil Mickelson, as seen through a spectators mirrored viewer, appears to putt right handed on the green of...

Phil Mickelson blasts from the bunker on the first hole of the south course during the opening round...

Phil Mickelson blasts from the bunker on the fifth hole of the south course during the opening round...

Phil Mickelson answers questions at a news conference prior to his practice round at Farmers Insurance Open at...

Phil Mickelson answers questions during a news conference prior to his practice round at the Farmers Insurance Open...