Played on one U.S. National Team (2016), one U.S. National Junior Team (2014) and one U.S. Men's National Under-18 Team (2013 - silver)

Men's World Championship

Member of the U.S. Men's National Team that competed in the 2016 International Ice Hockey Federation Men's World Championship in St. Petersburg and Moscow, Russia
- Appeared in 10 games.

World Junior Championship, Men's Under-18 World Championship

Member of the U.S. National Junior Team that competed in the International Ice Hockey Federation World Junior Championship in Malmo, Sweden
- Notched one goal in five games

Member of the U.S. Men’s National Under-18 Team that received the silver medal at the 2013 IIHF Men’s Under-18 World Championship in Sochi, Russia
- Received the directorate award as the tournament’s best defenseman
- Named one of Team USA’s best three players, as determined by the U.S. coaches.

Other International Events

Member of the U.S. National Under-18 Team that placed fourth at the 2013 Five Nations Tournament in Jonkoping, Sweden
- Skated in four games, earning one assist

Played for the U.S. National Under-18 Team that earned first place at the 2012 Four Nations Tournament in Ann Arbor, Michigan
- Skated in four games, recording two assists
Member of the U.S. National Under-17 Team that finished first at the 2012 Vlad Dzurilla Under-18 Tournament
- Played in three games
Member of the U.S. National Under-17 Team that placed second at the 2012 World Under-17 Hockey Challenge in Windsor, Ontario
- Played in six games

Member of the U.S. National Under-17 Team that captured the 2011 Four Nations Tournament title in Balishikha, Russia
- Played in four games with two assists

2015-16

Played three seasons (2013-16) for the Boston College Eagles of the Hockey East Association
Two-time Hockey East regular-season champion (2014, 2016)
Two-time Beanpot champion (2014, 2016)
Two-time NCAA Frozen Four Appearance (2014, 2016)
2015-16 Hockey East Defenseman of the Year

2015-16 (Junior)

Served as an alternate captain for the Eagles
Tallied 19 points (1-18) in 41 games
- Set career-highs in points (19) and assists (18)

2014-15 (Sophomore)

Collected five points (1-4) in 22 games for the Eagles
- Missed time recovering from wrist surgery

2013-14 (Freshman)

Played two seasons (2011-13) with USA Hockey's National Team Development Program

2012-13

Member of the U.S. National Under-18 Team that competed in the United States Hockey League and against Division I and Division III college opponents and international teams
- Collected 15 points (0-15) in 66 games

2011-12

Member of the U.S. National Under-17 Team that competed in the USHL and against international teams
- Notched 10 points (2-8) in 55 outings

Selected by the New Jersey Devils in the second round, 42nd overall, of the 2013 NHL Entry Draft
Son of Steve and Sandra Santini
Father, Steve, was a member of the University of Maine’s men’s ice hockey team
Skated in the 2012 CCM/USA Hockey All-American Prospects Game in Buffalo, New York
Skated with the New York Apple Core of the Eastern Junior Hockey League prior to joining the NTDP

Life aspirations outside of playing hockey: To positively impact everybody he meets

Hobbies out of hockey: Reading; Golf; Fishing

Favorite band or singer: Rick Ross

Favorite movie(s): Slap Shot

Favorite quote: "The worst thing in life is a waste of talent."

Favorite actor/actress: Channing Tatum

Favorite food: Chicken parmesan; Steak; Sweet potatoes

Favorite book: The Great Gatsby, F. Scott Fitzgerald; The Count of Monte Cristo, Alexandre Dumas, Auguste Maquet

Pre-game ritual: Pre-game nap, then shower to wake up

Favorite NHL player as a kid: Ryan McDonagh