There must be few sports in which more skin is put out there than Aussie Rules Football (except swimming).
It's not as the sport actually involves being shirtless (though does involve short shorts and sleeveless tops) but if you play Aussie Rules you seem to be contractually obliged to appear shirtless in a calendar.
You have the Men for all Seasons calenders(2004 issue) amongst others.
Heres a few non MoaS examples.
Heath Black:
David Spriggs
Brodie Holland
Mark McVeigh
Now that is how to make sport interesting.