Nathan (elbow) pitched one shutout inning at Triple-A Iowa on Thursday, striking out two batters along the way.

EDGE Analysis

Nathan has now thrown 7.2 innings between Double-A Tennessee and Triple-A Iowa while rehabbing his elbow. During that time he's allowed two runs, both of which were home runs. The Cubs have yet to say when they plan to end his rehab assignment, but the expectation is that Nathan could be joining the Cubs' bullpen in the near future.