The signing of Rodriguez is likely just an insurance pickup for Houston, who is believed to be targeting top remaining free-agent starters, including Yovani Gallardo. The Astros have Dallas Keuchel, Collin McHugh, Mike Fiers, Lance McCullers and Scott Feldman currently slotted into their rotation, but could look to make additional moves to bolster the group.
Rodriguez, 37, spent the first eight years of his major-league career with Houston before stints in Pittsburgh and Texas over the last four seasons. He posted a 4.90 ERA in 17 appearances (15 starts) with the Rangers last season and is the owner of a lifetime 4.10 ERA in 11 major-league seasons. In Houston, he posted a 4.04 ERA while serving as a reliable rotation option from 2005 to 2012.