Extra bases

Extra bases

• The Cubs have yet to determine the next step for Felix Doubront, who made his second rehab start on Sunday for Triple-A Iowa.

Doubront was placed on the disabled list with a strained left calf after being acquired from the Red Sox on July 30. On Sunday, he gave up three runs on eight hits over six innings in Iowa's 3-2 loss to Salt Lake.

• The Cubs will celebrate the 1990s during the next homestand, which begins on Tuesday. On Sunday, the Cubs will wear throwback uniforms from 1994 with "Cubs" written in red script across the front of the jersey. The visiting Orioles will wear a throwback road uniform from 1994 as well.

Among the promotional items on this homestand are a floppy hat Tuesday night and a Kerry Wood 20-strikeout Bobblehead on Friday. On Saturday, the first 10,000 fans will receive a Wrigley Field Tote Bag, and on Sunday, the first 5,000 children 13-and-under will receive a '90s Throwback "Gracie the Swan Beanie Baby."

The Cubs also will host Star Wars Night on Wednesday. Every ticket holder for this special event will receive an exclusive "Jedi Rizzo" bobblehead, with a portion of the proceeds going to the Anthony Rizzo Family Foundation.

The promotions are part of Wrigley Field's season-long 100th anniversary celebration.

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.