Minnesota United have turned their attention to former Vancouver Whitecaps defender, Michael Boxall. Recently released from the South African club SuperSport United, Boxall is looking to make a return to MLS with the Loons. Update: Minnesota United made this signing official. ???????? ???????? ????????#MNUFC signs New Zealand international defender @Boxall2. More » https://t.co/t4NyhhYnY9 pic.twitter.com/5v3UuV9LXh —…