The Pittsburgh Penguins have agreed to terms with defenseman Kris Letang on an eight-year, $58 million contract extension, it was announced today by executive vice president and general manager Ray Shero.

The deal begins with the 2014-15 season and runs through the 2021-22 campaign, and has an average annual value of $7.25 million.

Letang, 26, is coming off his best season, finishing third in balloting for the Norris Trophy as the best defenseman in the NHL. Letang led all NHL blueliners in both points (t-38) and assists (33) while posting a plus-16 rating and in 35 regular-season games. His 1.09 point-per-game average led all defensemen.

The 6-foot, 201-pound defenseman established careers highs during the postseason with team-leading totals of 13 assists and 16 points in 15 contests. Letang’s 16 points were tops among league defensemen, while his 13 assists were second in the entire NHL behind only Boston’s David Krejci (17).

Letang, a native of Montreal, Quebec, was a key member of the Penguins’ 2009 Stanley Cup championship squad, ranking second among team defenseman that spring with 13 points (4G-9A) in 23 games. His overtime game-winning goal in Game 3 against the Washington Capitals in the second round was a key moment in Pittsburgh overcoming a 2-0 series deficit.