The Mets claimed Carvajal off waivers.
Fantasy Baseball - Rotoworld.com
Which, of course, means that the Rockies passed on him.
I would imagine that's because they don't have anyone they'd rather drop from the 40-man roster in exchange for Carvajal.
So I checked, and the 40 man roster is now full. If there's any other pick-ups to be made, the following would seem to be the most dispensable:
Alexis Gomez (pointless recent pickup)
Jayson Nix (a huge longshot now; the Choo Freeman of the infield, coming off 3 awful minor league seasons in a row)
Omar Quintanilla (probably has some slight trade value)
Darren Clarke (he's almost 26, coming off injury,he's never pitched above A ball, but he's huge and that's O'Dowd's new thing and he has an outside chance to make the show as a reliever)
So, yes, there's still room on the roster if a good waiver claim pops up this spring.