Worth noting

• The Cardinals' Twitter account (@Cardinals) will be taken over by Mike Shannon on Wednesday for the organization's first "Twittercast." During the game against the Pirates, Shannon will step away from the microphone to provide commentary, answer questions and share stories. Fans who want to interact with Shannon on Wednesday should tweet to @Cardinals using the hashtag #MikeShannon.

• Matheny said it is "doubtful" that Carlos Beltran will start both games of Tuesday's doubleheader, though he did not tip his hand as to which of games Beltran will likely play. In the doubleheader the Cardinals played against the Giants in June, Matheny had all 12 of his position players start at least once.

• In his return to the Memphis rotation on Sunday, right-hander Carlos Martinez threw five scoreless innings. Martinez scattered three hits, walked two and struck out seven.