To make room for Berkman on the 25-man roster, outfielder Shane Robinson has been optioned back to Triple-A Memphis.
Berkman hasn't played since April 18 because of a calf injury, but he's hitting a robust .348/.500/.522 on the season. Now Berkman's potent bat returns to an offense that's already leading the NL in runs scored.
Manager Mike Matheny's challenge now becomes finding regular ABs for the hard-hitting Allen Craig, who's been punishing the ball since returning from offseason knee surgery. Of course, as managerial dilemmas go, there are worse problems to have.
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