Cubs shortstop Addison Russell, whose ex-wife, Melisa Reidy-Russell, has accused him of physical mistreatment in a blog post linked to her Instagram account, has been placed on “administrative leave.” “We take allegations of domestic violence seriously and support the League’s decision to place Addison Russell on administrative leave given new details revealed today,” the Cubs said in a statement Friday. “We will continue to cooperate with the League’s investigation so the appropriate action can be taken.”