The Islanders sent forward Brian Rolston and defenseman Mike Mottau to the Bruins in the minutes before Monday's 3 p.m. trade deadline, multiple sources confirmed. Boston sent prospects Yannick Riendeau and Marc Cantin to the Islanders in the deal, the source said. In addition to getting Rolston and Mottau from the Islanders, the Bruins also acquired defeseman Greg Zanon from the Wild for defenseman Steven Kampfer, a league source confirmed to ESPNBoston.com's James Murphy.