It's sad when great athletes play beyond their "best by" date.

Björn Borg - Quit Tennis At His Height, And Couldn't Climb Back A Decade Later

Björn Borg, a native of Sweden, conquered the tennis world in the late 1970s and early '80s, winning Wimbledon five times in a row and six French Open titles. He was known for his composed demeanor on the court - a cool counterpart to his fiery American rival John McEnroe.

However, just as suddenly as Borg rose to the top, he quit tennis altogether when he was just 26 - not even in a pro’s prime years. It turned out that beneath that icy exterior, the pressure of top-level tennis and the demands of training were taking their toll on his mind and body. He walked away from it all in 1983, seemingly for good. That was, until a 35-year-old Borg decided to make a comeback in 1991.

Cynics suggested his tennis reprise was doomed to failure, that the sport had moved on in his absence and he wouldn’t be able to compete against modern players. They were right.
Borg appeared in several tournaments from 1991 to 1993 without any success whatsoever.

His last three hits were three home runs in one game, driving in six runs playing for the Boston Braves. The real shame was he wanted SO badly to manage in the big leagues and no one would give him the chance.

Willy Mays in his last years as a NY Met..40 year beset by injuries he was no where near the World Class player he had been as a Giant

Most boxers.