According to insider Pierre Lebrun, Stanley Cup Champion Duncan Keith has officially retired from the NHL. Duncan Keith is retiring, per @PierreVLeBrun - Three-time Stanley Cup champion - Two-time Norris Trophy winner - 2015 Conn Smythe Trophy winner <div align='center'><blockquote class='twitter-tweet' data-lang='en'><a href='https://twitter.com/BR_OpenIce/status/1545450164785233921?s=20&t=WldgCXdrWMddCmHrGYv6Zw'> </a></blockquote></div>