Cardinals ace Chris Carpenter is set to return from a hamstring injury that sidelined him for a couple weeks. Carpenter left his March 1 spring debut in the third inning with a left hamstring strain. He's scheduled to make his second spring start Wednesday against the Detroit Tigers in Lakeland, Fla. Barring another setback, manager Tony La Russa anticipated the right-hander would have no problem elevating his pitch count in time to start on opening day. Carpenter would get two more spring starts before the March 31 opener against the San Diego Padres at home. Read more: http://sports.espn.go.com/mlb/spring2011/news/story?id=6219551