Pete Crow-Armstrong and Kyle Tucker are two of the biggest reasons the Chicago Cubs enter July with the third-best record in the National League and a two-game lead in the central division. Per OptaSTATS, Crow-Armstrong and Tucker are the first pair of MLB teammates to both have at least 30 extra-base hits and 20 stolen bases entering July in a season since George Sisler and Ken Williams of the 1922 St. Louis Browns.