Krys, who won a bronze medal with the U.S. at the 2016 WJC, has one goal and three points in 17 games for Boston University this season.
Windsor center Logan Brown (Ottawa Senators) and Erie right wing Alex DeBrincat (Chicago Blackhawks) were released from the team Wednesday following a 4-3 pretournament win against Switzerland.
The U.S. will open the tournament against Latvia in a preliminary-round game at Air Canada Centre in Toronto on Monday (3:30 p.m. ET; NHLN). The U.S. also will play Slovakia, Russia and Canada in Group B competition.
The final U.S. roster includes three goalies, seven defensemen and 13 forwards:
GOALTENDERS: Jake Oettinger, Boston University, H-EAST (2017 draft eligible); Tyler Parsons, London, OHL (Calgary Flames); Joseph Woll, Boston College, H-EAST (Toronto Maple Leafs)
DEFENSEMEN: Jack Ahcan, St. Cloud State, NCHC (2017 draft eligible); Joseph Cecconi, Michigan, BIG10 (Dallas Stars); Casey Fitzgerald, Boston College, H-EAST (Buffalo Sabres); Adam Fox, Harvard, ECAC (Calgary Flames); Caleb Jones, Portland, WHL (Edmonton Oilers); Ryan Lindgren, Minnesota, BIG10, (Boston Bruins); Charlie McAvoy, Boston University, H-EAST (Boston Bruins)
FORWARDS: Joseph Anderson, Minnesota-Duluth, NCHC (New Jersey Devils); Kieffer Bellows, Boston University, H-EAST (New York Islanders); Jeremy Bracco, Kitchener, OHL (Toronto Maple Leafs); Erik Foley, Providence, H-EAST (Winnipeg Jets); Jordan Greenway, Boston University, H-EAST (Minnesota Wild); Patrick Harper, Boston University, H-EAST (Nashville Predators); Clayton Keller, Boston University, H-EAST (Arizona Coyotes); Luke Kunin, Wisconsin, BIG10 (Minnesota Wild); Tanner Laczynski, Ohio State, BIG10 (Philadelphia Flyers); Jack Roslovic, Manitoba, AHL (Winnipeg Jets); Troy Terry, Denver, NCHC (Anaheim Ducks); Tage Thompson, Connecticut, H-EAST (St. Louis Blues); Colin White, Boston College, H-EAST (Ottawa Senators)
