Rays big leaguers B.J. Upton, Sean Rodriguez, Reid Brignac, and Wade Davis are drawing heavy interest, reports Ken Rosenthal of FOX Sports, but the team's "preference is to use their prospect depth to land a hitter." The Rays specifically feel that they can't match Upton's defensive skills with internal options.
The Rays' farm system is among the best in the game, so they can easily make prospect-only deals. Even if you take Desmond Jennings and Jeremy Hellickson out of the mix, Tim Beckham, Matt Moore, Alex Colome, and Matt Sweeney were considered top 100 prospects heading into the season. It's quite possible the Rays go even further down their prospect list. Look at the Angels - they just acquired Dan Haren without surrendering any top 100 guys.
As usual, the Rays have kept their targets close to the vest. Few players have been connected to them in recent weeks aside from Jayson Werth, and Yahoo's Tim Brown tweeted three days ago that a Rays source seriously doubts they get the Phillies outfielder.