In 2013, which sportsman posed nude for the US magazine ESPN?

In July 2013, Gary Player became the oldest athlete ever to pose nude in ESPN The Magazine's annual Body Issue to inspire people to keep looking after themselves throughout their lives whatever their age.

Gary Player DMS, OIG (born 1 November 1935) is a retired South African professional golfer. Over his career, Player accumulated nine major championships on the regular tour and six Champions Tour major championship victories, as well as three Senior British Open Championships on the European Senior Tour. At the age of 29, Player won the 1965 U.S. Open and became the only non-American to win all four majors, known as the career Grand Slam. Player became only the third golfer in history to win the Career Grand Slam, following Ben Hogan and Gene Sarazen, and only Jack Nicklaus and Tiger Woods have performed the feat since. Player has won 165 tournaments on six continents over six decades and was inducted into the World Golf Hall of Fame in 1974.

Nicknamed the Black Knight, Mr. Fitness, and the International Ambassador of Golf, Player is also a renowned golf course architect with more than 325 design projects on five continents throughout the world. He has also authored or co-written 36 golf books.