Extra bases

• The Cubs don't know who will be their closer in 2014, but Sveum said Wednesday they may use right-hander Pedro Strop in save situations in the final month of games.

"I don't think you'll have any idea at the end of this season about what's going to happen," Sveum said of the Cubs' bullpen. "So many things go into play there and it's a long offseason. Certain things come up. There's no way you can predict or plan what's going to happen by Spring Training next year."

The Cubs have used 21 relievers this season, with Lim, Bard and Justin Grimm in the bullpen waiting for appearances.

•  No decision has been made on the next step for right-hander Scott Baker, who made his final Minor League rehab start on Monday for Class A Kane County. Baker has been rehabbing from Tommy John surgery on his right elbow, which he had in April 2012.

• With right-hander Alberto Cabrera making his season debut and lefty Zac Rosscup making his big league debut on Tuesday, the Cubs have utilized 52 players, one shy of the franchise-record 53 who appeared last year. Still looking to make their debuts are Lim, Grimm and catcher J.C. Boscan.

The Cubs have utilized 11 rookies this season, and only four players on the current 25-man roster were on the 2012 Opening Day roster. That list consists of Starlin Castro, Darwin Barney, James Russell and Jeff Samardzija.