 Whiteside attended 2013 spring training as a non @-@ roster invitee , appearing in five games . He played 2013 with the Round Rock Express , where he split time at catcher with Robinson Chirinos and José Félix . In 67 games ( 225 at bats ) with the Express , he hit .187 with 5 home runs and 25 RBI . On October 1 , he filed for free agency . 
