Apr 6 9:04p
Robertson was optioned to Triple-A Rochester after Saturday's game. He'd give up one run in one inning over two games.
The Twins already have two lefties in the bullpen, so he became expendable with Scott Diamond and Anthony Swarzak near returns from the DL. It's not clear who will called up in the short term, but the Twins may bring in another reliever to keep the bullpen fresh.