The Cardinals are "monitoring every starting pitcher on the market" according to Ken Rosenthal of Fox Sports.
But the Redbirds aren't thought to be serious suitors for Chicago's Ryan Dempster -- or presumably guys like Cole Hamels or Zack Greinke -- because they're more interested in a guy they could hang onto for a couple of years as opposed to a rental player.
It's interesting that the Astros were part of a huge, 10-player trade earlier today with the Blue Jays. Apparently the for sale sign is in the window at the Juice Box and Houston is a team with a pitcher -- Wandy Rodriguez -- who is under contract for two more seasons.
He's got a guaranteed season of $13 million on the books for 2013 and an option year at $13 million for 2014. That's not chump change. But if they could get Houston to throw in enough cash to keep their obligation to Rodriguez at the $10 million a year mark, that's on par with what guys like Kyle Lohse and Jake Westbrook command.