McAvoy, 21, skated in 54 games for the Bruins in 2018-19, notching seven goals and 21 assists for 28 points with a plus-14 rating while leading the team with 22:10 time on ice per game. The 6-foot, 208-pound defenseman also appeared in 23 playoff games for the Bruins, adding two goals and six assists for eight points with a plus-four rating while once again leading the team with 24:30 time on ice per game.
McAvoy burst onto the scene in his rookie season with the Bruins in 2017-18, following his NHL debut in the 2017 Stanley Cup Playoff first-round series against the Ottawa Senators. He was the recipient of NESN's 7th Player Award following a rookie season in which he ranked second on the team with 22:09 time on ice per game and second among the team's defenseman in scoring with seven goals and 25 assists for 32 points. McAvoy led all NHL rookie blueliners in time on ice per game, ranked second in plus/minus (plus-20) and hits (133) and was tied for third in scoring (32 points).
The Long Beach, New York native was originally selected by Boston in the first round (14th overall) of the 2016 NHL Entry Draft.