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PALM BEACH GARDENS, FL - FEBRUARY 24: Phil Mickelson and caddie Jim Mackay talk on the 13th hole during the Pro-Am of the 2016 Honda Classic held on the PGA National Course at the PGA National Spa and Resort on February 24, 2016 in Palm Beach Gardens, Florida. (Photo by Mike Ehrmann/Getty Images)

PALM BEACH GARDENS, FL - FEBRUARY 24: Phil Mickelson and caddie Jim Mackay talk on the 13th hole during the Pro-Am of the 2016 Honda Classic held on the PGA National Course at the PGA National Spa and Resort on February 24, 2016 in Palm Beach Gardens, Florida.  (Photo by Mike Ehrmann/Getty Images)