A’s place reliever Sean Doolittle on DL
MINNEAPOLIS - On Tuesday, the A’s got two players back off their packed disabled list. Reliever Sean Doolittle was placed on Oakland’s 10-day DL with a left shoulder strain, the team announced Wednesday afternoon. [...] the team designated starter/long reliever Cesar Valdez for assignment; Valdez had allowed seven earned runs and four homers over his past four innings of work. Wahl, a fifth-round pick in 2013, was in big-league camp and already was on the 40-man roster, while Smith was a non-roster invitee to big-league camp.