Mets signed RHP Joel Carreno to a minor league contract. The deal also includes an invitation to spring training. The 26-year-old right-hander posted a 2.43 ERA, 0.95 WHIP and 90/24 K/BB ratio over 66 2/3 innings between Double-A New Hampshire and Triple-A Buffalo this season. He'll compete for a spot in the Mets bullpen.