The Nationals optioned Yean to Triple-A Rochester following Monday's 6-3 loss to the Phillies.
After just under two weeks with the big-league club, Yean will head back to Triple-A. The 25-year-old appeared in six games during his latest stint in Washington, posting a 2.25 ERA, 0.75 WHIP and 3:1 K:BB in eight innings.