GOLDEN VALLEY, Minn. – After a scorching April, May proved to be a failure for Twins first-baseman and outfielder Chris Colabello.

Colabello and Chris Hermann each were optioned to Triple-A Rochester after the Twins loss to San Francisco on Sunday.

Colabello's story was on the verge of being epic. In the offseason, he turned down a $1 million contract to play overseas all because he wanted the chance to make it in the majors. And it looked like a great decision.

He had 26 hits including eight doubles and three home runs in the month of April. He even set a new Twins record with 27 RBI, the most by any Twin in the first full month of the season.

Unfortunately, he struggled mightily in May. His batting average fell from .286 in April to .169 in May. He had just one home run, one double and three RBI.

The Twins will turn to a pair of outfielders who were expected to be key contributors at the start of the season, Oswaldo Arcia and Josh Willingham.

Arcia was eligible Saturday to return from Triple-A since he had been optioned 10 days prior.

Willingham will be activated from the disabled list. He was hit by a pitch on the left wrist in a game on April 6. In eight games in Rochester, Willingham batted .185.