FoxSports says that at least five teams are in on Wandy Rodriguez: Yankees, Blue Jays, Red Sox, Giants, and Dodgers.
All the aforementioned AL East teams have shown interest in Wandy in the past year:
Boston seemed to be interested last December. The Yankees were interested last August. And the Blue Jays were among the more heavily-rumored teams in on Wandy at the 2011 trade deadline.
Take it for what you will, but Houston 5A Baseball has a source who says:
#Astros in serious negotiation for W. Rodriguez. Could be dealt by end of weekend