Vaakanainen inked a two-year, $3.1 million contract extension Friday.
The 26-year-old defenseman was selected No. 18 overall by the Bruins in the 2017 NHL Entry Draft and was dealt from Anaheim to the Rangers on Dec. 6 in the Jacob Trouba trade. Vaakanainen has established himself with the Rangers and has two goals, seven assists and 26 blocked shots in 30 games with New York this season.