This just in: Bulls' shortstop Reid Brignac and reliever Dale Thayer have been promoted to Tampa. These aren't the two players I might have guessed. The Rays' starting pitching has lately been, other than Matt Garza, awful, and Wade Davis seemed to be the likely candidate to move up with Andy Sonnanstine coming down to Durham (David Price's workload is still too heavily restricted for major-league action). Instead, Tampa chose bullpen help--a bit of a surprise, since Jason Isringhausen was just brought up from Durham--providing at least a circumstantial answer to the question I asked not long ago, "What does Dale Thayer have to do to get called up?" Answer: keep pitching well, and wait.
With interleague play approaching, Tampa may have decided to stock an extra position player to accommodate the increase in in-game substitutions. I might have guessed that the Rays' would call up Matt Joyce, who has been raking for Durham, but apparently an infielder was what Tampa wanted. The 23-year-old Brignac will probably be back in Durham soon, unless there's an injury--or, less probably, a trade--we don't know about yet.
More on compensatory roster moves as we catch wind of them. And by the way, none is necessary to replace Isringhausen: League rules allow a team to carry a rehabbing player without adding him to the roster.