Evan Drellich of the Houston Chronicle reports that the Astros are one of six teams with interest in free agent right-hander Chad Gaudin. Gaudin is surely looking for a place to start, but Drellich speculates that he could fit as a second experienced reliever along with Chad Qualls. The 30-year-old posted a 3.06 ERA and 88/40 K/BB ratio in 97 innings with the Giants this past season as a starter and reliever.