Cubs' Codi Heuer: Starting rehab assignment

Heuer (elbow) will begin a rehab assignment with Triple-A Iowa on Saturday, Jordan Bastian of MLB.com reports.

It will be the first game action for Heuer since he underwent Tommy John surgery last March. Because he's missed so much time, a lengthy rehab assignment figures to be in order. He could eventually work his way into high-leverage relief spots for the Cubs.