Cubs C Ross on DL; RHP Peralta designated for assignment

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CHICAGO (AP) The Chicago Cubs have placed catcher David Ross on the seven-day concussion disabled list and designated veteran reliever Joel Peralta for assignment.

Cubs manager Joe Maddon also said it's uncertain if center fielder Dexter Fowler will be recovered from his right hamstring strain in time to start in the All-Star Game.

The moves before Wednesday's game against Cincinnati opened roster spots for two players. Right-hander Adam Warren was called up from Triple-A Iowa to make a spot start against the Reds, and utility player Tommy La Sa Stella was activated off the disabled list and started at third base.

Ross took a foul ball off his mask in Tuesday's loss to Cincinnati that Maddon said ''got him pretty good.''

The 40-year-old Peralta signed with Chicago on June 13 after being released by Seattle. The right-hander had a 9.00 ERA in five appearances.