Of the three major sports, baseball engenders the longest careers. The average MLBer is 28. Teh average age in the NFL and NBA is 26.

This makes sense for anyone who's played baseball. Because it's not a very physically taxing sport. We shouldn't be that surprised that Damon or Jeter are still playing at that level, especially since HGH is undetectable.

(am surprised about Posada though, less so about Rivera because he is an alien)