The Boston Bruins and forward David Krejci have agreed to a six-year extension through the 2020-21 season, the team announced Thursday. The deal is worth $43.5 million.

He has one year left on his current three-year, $15.75 million deal.

Krejci led the Bruins in scoring in the 2013-14 campaign with 69 points, posting 19 goals and 50 assists. He accrued an NHL best plus 39-rating.

In 504 career games in the NHL with the Bruins, Krejci has 378 points, including 77 points in 93 career playoff games. He led the team in scoring during its last two playoff marches to the Stanley Cup Finals.

The 28-year-old Krejci joins teammates Patrice Bergeron, Milan Lucic, Brad Marchand, Zdeno Chara, Dennis Seidenberg and Tuukka Rask under contract for at least the next three seasons.

The Sternberk, Czech Republic, was drafted by the Bruins in 2004 in the second round.