It says a lot about just how successful Wayne Gretzky was as an ice hockey player when he still has so much money, so many years after retiring from the game. You don't get a nickname like "The Great One" without doing something to earn it, and Gretzky is widely considered to be the greatest hockey player of all time. No other player in history has managed to accumulate 200 points in a single season. Gretzky did it no less than four times. When he retired, they didn't just retire his famous number 99 jersey from his own team - the whole league followed suit.
After retiring, he went on to get involved with coaching the Canadian national hockey side, who won their first gold medal in 50 years with him among their management team in 2002. He remains involved in the sport at the business level, returning to his former club the Edmonton Oilers as a partner and vice chairman of their parent company.