Garza, who missed all of Spring Training because of a strained left lat, will make his second rehab start on Monday for Iowa. This was expected to be the first of three more rehab starts for the right-hander, who was limited last season after elbow problems sidelined him in July.
"We'd like to see him get three more starts down there, and the third start from now, get close to 100 pitches before he gets back here," Cubs manager Dale Sveum said Friday.
Starting pitching has been one of the Cubs' strengths, with a 3.49 ERA entering Friday's game. What happens when Garza is ready to return?
"It's a good problem to have," Sveum said. "Sometimes those things work themselves out by the time he's ready to pitch, and if not, we all know it's going to be one heck of a tough decision as to what we're going to do."
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.