Rene Rivera and Joey Butler remain on the 40-man roster.
Today was roster crunch day, and with a number of promising young prospects needing to be protected from the Rule 5 draft, GM Matt Silverman had some difficult decisions to make. He made those decisions even more difficult by adding a player to the 40-man when the Rays claimed pitcher Chase Whitley from the Yankees.
Well, now we know who has been designated for assignment to make room. According to Marc Topkin of the Tampa Bay Times, those players are Daniel Nava, J.