Quote Originally Posted by DaxxKahn
Tyson is an old 40....Very old 40...Also not every fighter is able to be competitive at that age the few who are still able are rare cases...and they took very good care of them selves...Plus their styles allowed them to be able to stay around that long...Or in cases of guys like Virgil Hill they took some time off from the ring....Tyson is unable to pull the trigger anymore that right there is a big factor...It is also the same thing that is starting to hurt Jmaes Toney...Tyson is done and has been for a long long time
This is exactly right. Tyson is not your average 40 year old, he was already fighting title fights at the age of 20. He's been thru a lot of wear and tear.

Also, the fighters who are able to stay competitive at advanced ages are tall fighters who can use their reach to win fights without having to absorb much contact. Shorter fighters with short arms like Tyson and Frazier need to absorb punishement and constantly come forward to get to their opponent. These type of fighters don't have a long lifespan. Frazier never won a fight after the age of 31. Tyson never won a title fight after the age of 30, and never beat a really dangerous opponent after the age of 25.