<Li> 40 years, 57 days - Viacheslav Fetisov (1998) </Li> <Li> 40 years, 56 days - Joe Mullen (1997) </Li> <Li> 40 years, 46 days - Larry Murphy (2001) </Li> <Li> 40 years, 45 days - Ken Schinkel (1973) </Li>

What is the average retirement age of a professional hockey player