Astro-hater Tracy Ringolsby is saying that the Rays are your front-runner for Soriano:
The Rays and Houston are making the strongest push to acquire right-handed closer Rafael Soriano from Atlanta with growing indications that the Rays are likely to make the move...
...The Astros lost free agent Jose Valverde to free agency also, which is why they are interested, but with the Rays have a team that has shown it is capable of competing with the Yankees and Red Sox in the AL East there is a need for them to address the bullpen need.