Myers won the 2010 Calder Trophy with an eye-opening 11-goal, 48-point campaign. This past season, Myers struggled early in the season -- a product of trying to do too much, he said recently in a sit-down with NHL.com -- but found his way in the season's second half as the Sabres surged into the playoff picture with a fantastic closing kick.
He finished with 10 goals and added 27 assists and 40 penalty minutes this past season and was Buffalo's best all-round defenseman in the seven-game series against Philadelphia in the First round of the Stanley Cup Playoffs.
Myers was selected in the first round, No. 12, by the Sabres in the 2008 Entry Draft.
New York Islanders forward John Tavares has reportedly agreed to a similar long-term extension with his team. It is expected to be announced at an afternoon press conference Thursday.