Hamels (oblique) threw a bullpen session Saturday, Evan Grant of the Dallas Morning News reports.
Provided that Hamels' bullpen session went smoothly, the next step in his rehab process will be throwing to live hitters, according to Grant. Hamels has been making steady progress in recent weeks and has responded well each time the Rangers have upped his activity level. Once Hamels begins facing live hitters, a rehab assignment could be next on the docket.