Ms Musto retired unexpectedly after a brief leave due to illness.

Sanders retired unexpectedly at 31, after 10 prolific seasons with the Detroit Lions.

Smith unexpectedly retired before the start of practice for the 1997-98 season.

He unexpectedly retired because of serious heart problems.

He unexpectedly retired on March 5, 1984 stating he was burned out on soccer and wished to complete his business degree.

O'Keefe retired unexpectedly in 2001, after he'd been preselected to run again in the election scheduled that year.

William I. Jovanovich unexpectedly retired late last month after 36 years as chairman.

The same for Nick Burke, the print-shop teacher, who was unexpectedly retiring after 31 years.

He retired from Citibank unexpectedly, however, in January 2000.

Iwasaki unexpectedly retired at the height of her career, aged just 29.