This marks Hanifin's fourth time that he will dress for the United States at the tournament. As for Keller, this marks the second time this year that he will represent his country after he contributed three goals and eight assists in seven games at the World Junior Hockey Championship.
Hanifin is coming off a strong sophomore season in the NHL that saw him post 29 points in 81 games - a seven-point improvement over his rookie year.
Meanwhile, Keller is coming off his first year at Boston University where he posted 21 goals and 45 points in 31 games. The 18-year-old also got his first taste of the NHL collecting two assists in three games with the Coyotes.