Forward Tyler Seguin has agreed to a six-year contract extension with the Bruins that will keep him in Boston through the 2018-19 season, the team announced on Tuesday.

Seguin, who is entering his third season in the NHL, will average $5.75 million a season over the six years of the new deal.

By the end of the contract, Seguin will have completed eight NHL seasons. Under the terms of the current CBA, the Bruins will have bought back one year of unrestricted free agency from Seguin with this new deal.

Seguin tweeted about the contract on Tuesday: “Happy to be apart of the Boston Bruins organization for another 7 years. Thanks for the support and everyone involved.”

Seguin led the Bruins with 29 goals in 2011-12, and he also had 38 assists for 67 points. He was chosen for the NHL All-Star Game.

His deal comes less than a week after the Bruins announced a four-year, $18 million extension for winger Brad Marchand.

But whether Seguin will be able to play for the Bruins soon is in doubt, with the NHL and the players association locked in a labor standoff that could turn into a lockout.