Extra bases

• Scott Baker, rehabbing from Tommy John surgery on his right elbow, will make his first Minor League rehab start on Sunday for Class A Kane County.

Baker was scheduled to throw four innings, or 65 pitches. If all goes well, the right-hander could be ready to join the Cubs rotation in about a month.

• Opening Day starter Jeff Samardzija will open the second half next Friday in Colorado. The Cubs' rotation after the All-Star break will be Samardzija (5-9, 4.06 ERA), Carlos Villanueva (2-5, 3.59) and Edwin Jackson (6-10, 5.11) against the Rockies, with Matt Garza (5-1, 3.22) kicking off a four-game series in Arizona on July 22, followed by All-Star Travis Wood (6-6, 2.69).

Wood wraps up the first half on Sunday night against the Cardinals.