It's absolutely true that more players now are choosing retirement earlier these days and they are citing the desire to maintain their health as the primary motivation.
Some of those guys are wrapping up rather lengthy careers.
Woodson - 18
Peyton - 17
Peanut - 13
Jared Allen - 12
Heath - 11
Mankins -11
Tuck - 11
Jennings - 10
Ferguson -10
Docket - 10
This will be one more reason to refrain from proclaiming somebody an HoF lock. With only 5 spots a year the voting will just get tighter. You easily have 8 or 9 guys on that list with semifinalist/finalist credentials.