Arizona: Class AA Mobile RHP Trevor Bauer was named the organization's pitcher of the month for April after going 5-0 with a 1.26 ERA. Bauer, the third player taken in the 2011 draft, struck out 37 and gave up 18 hits while walking 17 in 28 2/3 innings. Opponents hit .184 against him. The first minor-leaguer to reach five victories, Bauer lost Tuesday for the first time this season. ... SS John McDonald received his second intentional walk in his last three starts Tuesday. Those are his only intentional walks in 894 career games. ...