If the Twins are going to add a big-name veteran catcher to their mix now that Joe Mauer is switching to first base, it reportedly won't be old friend/foe A.J. Pierzynski. His name had been mentioned -- and progress had reportedly been made in bringing him in -- but ESPN is reporting he will sign with the Red Sox:

The Boston Red Sox have come to terms with free-agent catcher A.J. Pierzynski, according to a baseball source, which ends Jarrod Saltalamacchia's tenure with the Red Sox. The deal, which is most likely for one year, the source said, is pending a physical.

In a way, it's not a huge surprise. As much as we liked the idea of bringing back Pierzynski on the Twins, it was hard for us to imagine him going somewhere that is still in rebuilding mode (even after the addition of starting pitchers Ricky Nolasco and Phil Hughes).

That said, this now puts Saltalamacchia on the market ... so you never know if that's the next fit.

Also today, reports were that Joe Nathan, the former Twins closer, has reached agreement on a two-year deal with the Detroit Tigers. Here's a report from cbssports.com.