• Drafted by the Calgary Flames in the third round, 66th overall, of the 2016 NHL Draft in Buffalo, New York. After his rights were acquired by the Carolina Hurricanes in a trade, had his rights traded to the New York Rangers
• Named 2021 Norris Trophy Winner, for the NHL's best defenseman
• Represented Team USA at the IIHF Men's World Championship in 2019
• Member of two U.S. National Junior Teams in 2018 and 2017, winning bronze in 2018 and gold in 2017
• Skated to gold in 2016 at the IIHF Under-18 Men's World Championship as a member of the U.S. Under-18 Men's National Team 

2025 4 Nations Face-Off - Montreal, Quebec & Boston, Mass.

• Skated in all four games during the tournament

2019 IIHF Men's World Championship - Bratislava & Kosice, Slovakia (7th Place)

• Registered an assist in eight games

2018 IIHF World Junior Championship - Buffalo, N.Y. (Bronze Medal)

• Served as alternate captain
• Led U.S. defenders in points with five (1G, 4A) in seven games

2017 IIHF World Junior Championship - Montreal & Toronto, Canada (Gold Medal)

• Recorded three assists in the gold medal game

2016 IIHF Under-18 Men's World Championship - Grand Forks, North Dakota (Bronze Medal)

• Led all tournament defensemen in points and assists
• Named Best Defenseman of the Tournament, as chosen by the Directorate
• Selected to the Media All-Star Team

2024-25 | New York Rangers (NHL)

• Has played 55 games through Feb. 9, recording 44 points (4g, 40a)

2023-24 | New York Rangers (NHL)

• Recorded 73 points (17g, 56a) in 72 games 

2022-23 | New York Rangers (NHL)

• Posted 72 points in 82 games
• Named Norris Trophy Finalist

2021-22 | New York Rangers (NHL)

• Tallied a career-high 74 points in 78 games, added 23 playoff points in 20 games

2020-21 | New York Rangers (NHL)

• Norris Trophy Winner
• Posted 47 points (5g, 42a) in 55 games

2019-20 | New York Rangers (NHL)

• Made NHL debut in October 2019, skating in 70 games for the Rangers, while recording 42 points

Played three seasons with Harvard University, an ECAC Hockey member

•  First-Team CCM/AHCA All-American (2017, 2018, 2019)
•  ECAC Hockey/Ivy League Rookie of the Year (2017)
•  ECAC Hockey Regular Season, Tournament Champions (2017)

2018-19 | Junior

• Named Hobey Baker finalist and AHCA First-Team All-American
• Finished the season with a career-best 48 points on nine goals and 39 assists
• Surpassed the 100 career-point mark

2017-18 | Sophomore

• Finished with 28 points on six goals and 22 assists

2016-17 | Freshman

• Led all NCAA defensemen and ranked fourth among NCAA freshmen skaters with 40 points 
• Assists (34) paced all NCAA defensemen and all NCAA freshmen skaters 
• Paced all ECAC Hockey skaters in both points (40) and assists (34)

Played two seasons (2014-16) with USA Hockey’s National Team Development Program.

2015-16 | NTDP

• Led all defensemen in scoring with 49 points (8-41)
• Among all skaters, finished second in assists (31) and third in points (49)

2013-14 | NTDP

• Led all defensemen in goals (4) while ranking second in assists (23) and points (27)

International NTDP Tournaments

• 2016 Under-18 Five Nations Tournament - Rauma, Finland (4th Place)
• 2015 Under-17 Four Nations Tournament - Monthey, Switzerland (1st Place)
  • Paced all U.S. defensemen with seven assists
• 2015 Under-17 Five Nations Tournament - Dmitrov, Russia (2nd Place)
  • Served as team captain 
  • Scored a goal and added six assists in seven games
• 2014 Under-17 Four Nations Tournament - Ann Arbor, Michigan (2nd Place)

• Grew up playing for the Long Island Gulls youth hockey organization where he was coached by Mike Bracco, whose son, Jeremy, was his teammate at USA Hockey's National Team Development Program
  • Skated with the Gulls' 10U, 12U, 14U,  and 16U teams
• Attended USA Hockey's Boys Select 15 Camp