The Cubs have designated lefty Clayton Richard for assignment, Mark Gonzales of the Chicago Tribune reports on Twitter. Chicago has brought up Yoervis Medina to take his spot on the active roster.

Richard, just acquired from the Pirates to provide a temporary rotation option, has allowed nine earned runs over 15 frames with Chicago. He’s permitted 19 hits (including two long balls) and five walks in that stretch, while striking out only six batters.

It remains to be seen whether any other clubs will be willing to give an active roster spot to Richard, who could conceivably find a role with a team that deals away from its rotation over the coming days. He did produce rather excellent results (1.89 ERA in 62 innings) during his run at Triple-A for the Pittsburgh organization.