Extra bases

• Top prospect Javier Baez was activated from Triple-A Iowa's disabled list Sunday and in the lineup as the designated hitter. Baez, who had not played since April 10, went 0-for-4 and struck out three times. He injured his left ankle taking ground balls on April 11. In eight games, Baez was 4-for-26 with two home runs and 10 strikeouts.

• Rizzo entered Sunday's game batting .464 at Wrigley Field, while teammate Starlin Castro was hitting .424 at home. They rank among the National League leaders in home batting average.

"Their two-strike approaches are pretty good," Renteria said of Rizzo and Castro. "Riz in particular with two strikes is choking up a little now and trying not to be so pull conscious and takes what they give him. It's more of a mindset. You have to make an adjustment and as you improve as big league players, you know there are things you have to work on.

"He's come to a conclusion that some of the things he's doing are helping him. With offense, there are peaks and valleys to them, but so far, he's had a consistent approach."

• The Cubs will celebrate Wrigley Field's 100th anniversary Wednesday. Sue Quigg, grand-niece of former Cubs owner Charles Weeghman, will throw the game's ceremonial first pitch, and use the 100-year-old ball her grandmother Dessa Weeghman threw at a Chi-Feds game a century ago. The first 30,000 fans will receive replica Chi-Feds jerseys, and the first 10,000 fans will get a birthday cupcake.

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.