Rockies signed LHP Pedro Hernandez to a minor league contract. He'll be given an invitation to spring training. Hernandez was removed from the Twins' 40-man roster last month after posting a 6.83 ERA and 29/23 K/BB ratio over 56 2/3 innings in 2013, but it didn't take him long to find another gig. He'll likely begin next season at Triple-A.