Has represented the United States internationally at the 2014 World U17 Hockey Challenge, the 2015 IIHF World U18 Championship and the 2017 IIHF World Junior Championship, winning a gold medal at all three tournaments.

Registered 15 points (1g, 14a) in 52 games with the U.S. National Team Development Program U17 squad, including seven assists in 33 USHL games… Made USHL debut and tallied two assists vs. Youngstown (9/21)… Recorded two assists vs. Dubuque (4/5)… Posted three assists in six games with the United States at the 2014 World U17 Hockey Challenge, winning a gold medal.

Tallied 25 points (6g, 19a) in 65 games with the U.S. National Team Development Program U18 squad, including eight points (2g, 6a) in 25 USHL games… Registered two points (1g, 1a) including first career USHL goal vs. Bloomington (11/14)… Recorded five assists in seven games with the United States at the 2015 IIHF World U18 Championship, winning a gold medal.

Posted 55 points (10g, 45a) in 72 WHL games with Portland… Led all WHL rookie defensemen in assists and points… Led the Winterhawks in assists… Finished fourth among all Portland skaters in points and power-play points (21)… Made WHL debut at Victoria (9/25)… Registered first career WHL goal and first career WHL assist at Victoria (9/26)… Earned a five-game point streak from 10/28-11/7 (2g, 6a)… Tallied two assists at Everett (10/30)… Recorded three points (1g, 2a) vs. Kelowna (11/7)… Registered three assists vs. Swift Current (11/13)… Posted assists in three straight games from 11/20-11/25 (3a)… Tallied three points (1g, 2a) at Everett (12/9)… Recorded a six-game point/assist streak from 12/27-1/8 (2g, 6a)… Registered two points (1g, 1a) vs. Tri City (12/27)… Posted two points (1g, 1a) vs. Seattle (12/31)… Earned a four-game point streak from 1/23-1/30 (1g, 4a)… Tallied two assists at Seattle (1/23)… Recorded three assists at Spokane (2/10)… Registered two assists at Medicine Hat (2/20)… Posted two points (1g, 1a) at Calgary (2/23)… Tallied two assists at Vancouver (3/11)… Added two assists in four WHL playoff games with the Winterhawks… Made WHL playoff debut at Everett (3/25)… Recorded two assists for first career WHL playoff points vs. Everett (3/29)… Signed an amateur try-out agreement with AHL Bakersfield (4/8)… Skated in three AHL games with the Condors… Made AHL debut at Ontario (4/8).

Registered 62 points (9g, 53a) in 63 WHL games with Portland… Ranked fourth among all WHL defensemen in assists and sixth in points… Finished second among all  Winterhawks skaters in assists and fourth in points… Posted two assists at Brandon (10/11)… Tallied two points (1g, 1a) at Regina (10/12)… Earned assists in three straight games from 10/21-10/29 (3a)… Recorded four points (1g, 3a) vs. Calgary (11/12)… Registered a three-game point/assist streak from 11/20-11/25 (1g, 4a)… Posted three points (1g, 2a) vs. Lethbridge (11/20)… Earned a nine-game point/assist streak from 11/30-1/13 (1g, 12a)… Tallied two assists vs. Kootenay (12/3)… Recorded three assists vs. Victoria (12/9)… Registered two points (1g, 1a) vs. Spokane (1/13)… Earned a seven-game point streak from 1/21-2/3 (1g, 7a)… Posted two assists vs. Everett (1/31)… Tallied a five-game point streak from 2/18-3/1 (2g, 6a)… Recorded two points (1g, 1a) at Seattle (2/18)… Registered two assists at Vancouver (3/1)… Finished the regular season with an eight-game point streak from 3/4-3/19 (2g, 9a)… Posted two assists vs. Prince George (3/8)… Tallied two assists vs. Seattle (3/11)… Recorded two assists at Tri-City (3/14)… Added 10 points (2g, 8a) in 11 WHL playoff games… Led team in playoff assists and points… Registered two assists at Prince George (3/24)… Posted four assists vs. Prince George (3/30)… Scored first career WHL playoff goal and added an assist vs. Kelowna (4/11)… Tallied two points (1g, 1a) vs. Kelowna (4/12)… Recorded two assists in seven games with the United States at the 2017 IIHF World Junior Championship, winning a gold medal.

Posted 17 points (2g, 15a) in 58 AHL games with Bakersfield… Led all Condors defensemen in assists… Earned first career AHL point (assist) at Stockton (10/6)… Scored first career AHL goal vs. San Antonio (11/21)… Tallied two assists at San Jose (1/15)… Recorded two points (1g, 1a) at Stockton (3/3).

Registered six points (1g, 5a) in 17 NHL games with Edmonton and posted 29 points (6g, 23a) in 50 AHL games with Bakersfield… Finished third among Condors defensemen in assists and points and tied for second in goals… Began the season with Bakersfield… Tallied two points (1g, 1a) vs. Stockton (10/5)… Earned assists in three straight games from 10/27-11/3 (5a)… Recorded two assists vs. Stockton (10/27)… Registered two assists at Stockton (10/31)… Posted two assists vs. Colorado (11/17)… Recalled to Edmonton (12/12)… Made NHL debut vs. PHI (12/14)… Earned first career NHL point (assist) at STL (12/18)… Scored first career NHL goal at SJS (12/29)… Tallied two assists for first career NHL multi-point game at ANA (1/6)… Logged a season-high 24:39 of ice time at SJS (1/8)… Reassigned to Bakersfield (1/21)… Earned a three-game point streak from 1/26-2/2 (2g, 3a)… Recorded two assists at Tucson (1/26)… Scored two goals at Ontario (2/2)… Registered two assists at San Jose (3/6)… Posted two assists at Ontario (3/22)… Finished the regular season with assists in three straight games from 4/10-4/14 (3a)… Added three assists in 10 AHL playoff games… Made AHL playoff debut and earned first career AHL playoff point (assist) at Colorado (4/19).

Recorded nine points (4g, 5a) in 43 NHL games with Edmonton… Posted 11 points (3g, 8a) in 14 AHL games with Bakersfield… Began the season in the AHL… Earned a three-game point streak from 10/23-10/26 (2g, 1a)… Registered assists in three straight games from 11/1-11/9 (5a)… Posted two assists vs. San Jose (11/9)… Recalled to Edmonton (11/13)… Reassigned to Bakersfield (12/3)… Recalled to Edmonton (12/9)… Scored a goal in back-to-back games vs. STL (1/31) and at CGY (2/1)… Tallied two assists at LAK (2/23)… Skated in two Stanley Cup Playoff games with the Oilers… Made NHL postseason debut in Game 3 of the Oilers’ Qualifying Round series at CHI (8/5).

Tallied four assists in 33 NHL games with Edmonton… Averaged 13:36 of ice time per game… Recorded 35 blocked shots and 27 hits… Recorded an assist in season debut vs. VAN (1/13)… Posted season highs in hits (4), blocked shots (3) and ice time (19:06) at WPG (4/26)… Traded to Chicago (7/12).

Posted 15 points (5g, 10a) in 51 NHL games with Chicago… Tied for team lead among defensemen in goals… Set a new NHL career high in goals… Averaged 16:43 of ice time per game… Ranked sixth on the Blackhawks in blocked shots (58)… Made Blackhawks debut at SEA (11/17)… Played 100th career NHL game at NYI (12/5)… Tallied two points (1g, 1a) vs. WSH (12/15)… Recorded two assists and logged a season-high 26:14 of ice time vs. NJD (2/25)… Earned a three-game point streak from 3/8-3/15 (2g, 2a)… Scored two goals at OTT (3/12)… Registered a season-high six hits and added an assist vs. BOS (3/15).

Tallied 16 points (4g, 12a) in 73 NHL games with Chicago… Established NHL career highs in games played, assists and points… Ranked third among team defensemen in goals, assists and points… Finished third on the Blackhawks in blocked shots (118) and sixth in hits (116)… Averaged 19:13 of ice time per game… Earned a three-game assist streak from 10/25-10/29 (4a)… Posted two assists vs. EDM (10/27)… Recorded a three-game point streak from 11/23-11/27 (1g, 2a)… Played 200th career NHL game at FLA (3/10)… Scored first career NHL power-play goal at ARI (3/18)… Logged a season-high 25:08 of ice time and blocked five shots vs. VAN (3/26).