Hanifin will be representing the U.S. for the fourth time in IIHF World Championship play. In addition to playing in last year’s IIHF Men’s World Championship in Moscow and St. Petersburg, Russia, Hanifin won gold with the U.S. Men’s National Under-18 Team at the 2014 IIHF Under-18 World Championship in Lappeenranta and Imatra, Finland. He was also a member of the 2015 U.S. National Junior Team that competed in the 2015 IIHF World Junior Championship in Toronto and Montreal, Canada.

The Norwood, Mass., native has tallied 51 points (8-43) in 160 games over two seasons with the Carolina Hurricanes. Before joining Carolina, Hanifin played one season with Boston College, amassing five goals and 18 assists in 37 games. He also played one season (2013-14) with USA Hockey’s National Team Development Program, where he captained the U.S. National Under-17 Team and collected 33 points (8-25) in 45 games.

This will be the fourth time that Keller will represent Team USA. He most recently tallied 11 points (3-8) while helping lead the 2017 U.S. National Junior Team to a gold medal at the 2017 IIHF World Junior Championship in Toronto and Montreal, Canada. He also won gold as a member of the 2015 U.S. Men's National Under-18 Team at the 2015 IIHF Under-18 World Championship in Zug and Lucerne, Switzerland, and earned a bronze medal a year later at the same event in Grand Forks, N.D.

Keller, who signed with the Arizona Coyotes following his college season at Boston University, made his NHL debut on March 27 against St. Louis and played in three games with two assists. At BU, the Swansea, Ill., native appeared in 32 games in 2016-17, totaling team-highs in points (45), goals (21) and plus-minus (+15) en route to being named Hockey East Rookie of the Year and a Hockey East Second-Team selection.

The U.S. Men’s National Team now includes nine forwards, five defensemen and three goaltenders.