Jose De Jesus Ortiz of the Houston Chronicle mentions this morning that the Rangers are asking the Astros about Brad Lidge, and that Hank Blalock could be part of a deal.
Such a trade would really pile on the third basemen for Houston, who already have Morgan Ensberg and Aubrey Huff. Ensberg is on the road to recovery from a shoulder injury, but Huff can play the outfield corners or first base.