Rally-killing double plays are beginning to wear on Marlins manager Mike Redmond, who indicated they could end up costing players their jobs if the problem isn’t fixed. “Seems like every time we get guys into scoring position, we ground into a double play,” Redmond said Friday after the Marlins grounded into three double plays in a 4-3, 11-inning loss to the White Sox. “We’ve been watching this all year. It’s those guys’ job to drive in runs. Obviously, if you don’t get the job done, you know what happens.” Jeff Mathis on Friday grounded into the sixth bases-loaded double play of the season by the Marlins, which is tied for most in the majors with the Angels and A’s. But the Marlins have had a total of only 35 plate appearances in which the bases have been loaded compared with 67 for the A’s and 49 for the Angels. With runners in scoring position, the Marlins have bounced into 22 double plays, also tied for most in the majors. “Very frustrating,” Redmond said. “It’s happened a lot.”