According to MLB.com, the Diamondbacks are looking at free agent infielder Mark Loretta.
"I think it's very possible something could work out, but there has been no offer," Loretta's agent Bob Garber said last week. "They've let us know they are very interested."
How does this affect the Astros? The only infielders they would have under contract would be Berkman, Matsui, Tejada and Blum. Newhan is in the mix, too. But I'm guessing if Loretta bolts, the Astros will have to look at resigning Wigginton - or going to a Plan C.