So say you have a concussion. There's no need to fly cross-country. Or say your hip hurts. There's no need to fly cross country. Or say you have a mystery calf injury and your entire game is build on speed - you could take a few weeks off and get better rather than have the team play short handed.
I think all Mets fans are done with Ramon Martinez. The first thing I want Gary Cohen to tell me tonight is that Martinez has been sent down and they have called up anybody who can catch. Mr. Anybody can go 0 for 30, I'll just pretend it's the pitcher's spot.
Now about that list:
There are two Disabled Lists: the 15-day Disabled List and the 60-day Disabled List. To be put on a Disabled List, a doctor must certify a player as disabled. Players on the 60-day Disabled List do not count towards the 40-man roster. Players may be moved from the 15-day Disabled List to the 60-day Disabled List. Players may be put on either list retroactively up to ten days, beginning the day after they last played.
Wow, who knew?