Worth noting

Neil Walker (appendectomy) had quite a comprehensive simulated game workout Friday morning at Wrigley Field: Four at-bats (two from each side), ground balls, regular batting practice, baserunning. Everything felt good.

Hurdle: "They always say they feel good. That's all part of the rehab."

• The Pirates entered this series having dropped only one of the last nine sets they have played at Wrigley Field, since the start of the 2011 season.

Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer. This story was not subject to the approval of Major League Baseball or its clubs.