The Red Sox are announcing the signing of Ryan Dempster at a press conference right now, and just beforehand said they've DFA'd RHP Pedro Beato.
Beato was the consensus assumed choice among Red Sox-related chatter this morning on Twitter after word came down regarding Dempster's press conference being scheduled. The Sox' 40-man roster is full, according to WEEI's Alex Speier.
The Sox have been slow to make a lot of these moves official, which could mean that they're trying to figure out the best way to make some of these roster decisions. Maybe they have trades in the works. Maybe they just don't know which players they like best.
As it stands now, Mike Napoli and Stephen Drew are still not officially signed, so the Sox have two more decisions to make.