In winning, Immelman emulated compatriots Gary Player, the last man to defend the title, and Ernie Els, who was the last man to defend a title on the European Tour.

BBC: SPORT | Golf | Immelman retains title

Last year Mickelson, who has won two Masters and a USPGA title, finished 11 shots behind tournament winner Graeme McDowell, who will be back to defend his title.

BBC: Mickelson to miss Scottish Open

My priorities now are to defend my Wimbledon title and to defend my number one ranking.

BBC: SPORT | Tennis | Federer coasts to Masters Cup win