The Cardinals designated outfielder Erik Komatsu for assignment, MLB.com's Jenifer Langosch reports. The move creates 25-man roster space for Allen Craig, who's returning from the disabled list.

The Cardinals selected Komatsu from the Nationals in last winter's Rule 5 draft. St. Louis now has ten days to determine the 24-year-old's fate. The Cardinals could work out a trade with the Nationals that would allow them to keep Komatsu, they could return him to Washington, or he could be claimed by a third team. Komatsu appeared in 15 games for the Cardinals, playing all three outfield positions. He has a .302/.389/.434 line in four seasons as a minor leaguer.