Kammala wannan magana: A matsayin wani ɓangare na sake gina tsarin da Senators suka yi yayin da aka kammala kakar 2010-11, Kelly ya yi ciniki zuwa Boston Bruins a ranar 15 ga Fabrairu, 2011, don zagaye na biyu na zagaye a
2011; Ottawa daga baya ya yi amfani da zaɓin don zaɓar gaba Shane Prince. Kelly da Boston Bruins sun lashe Stanley Cup, inda suka ci Vancouver Canucks.