Jason Castro is hitting .448 with a team-leading five home runs, 11 RBIs and 1.550 on-base plus slugging percentage. Carlos Corporan blasted two no-look home runs Thursday off Detroit ace Justin Verlander during the Astros’ 7-2 victory in a Grapefruit League game at Joker Marchant Stadium. And while the Astros continue to produce intriguing power numbers — 39 homers through 25 exhibition games — the club’s catcher tandem has been one of its primary strengths during spring training. Castro’s the clear starter. But Corporan entered Thursday hitting .304 with a .725 OPS and has drawn praise for his defensive work. He gives the Astros a high-caliber veteran backup. “They’re both [...]