Vitali Kravtsov, F: The 20-year-old began this season playing for Traktor Chelyabinsk in the Kontinental Hockey League by scoring eight points (six goals, two assists) in 11 games, missing seven with a lower-body injury before returning Oct. 23. Kravtsov scored 15 points (six goals, nine assists) in 39 games for Hartford of the American Hockey League last season, his first in North America. … Libor Hajek, D: The 22-year-old had five assists in 28 NHL games last season. He missed one month with a knee injury before finishing the season in Hartford. … K'Andre Miller, D: The 20-year-old agreed to an entry-level contract March 16. He scored 40 points (12 goals, 28 assists) in 62 games in two seasons at the University of Wisconsin. … Nils Lundkvist, D: The 20-year-old, selected by New York in the first round (No. 28) of the 2018 NHL Draft, has not signed an NHL contract, but his stock has risen after breaking the Swedish Hockey League record for points by an under-20 defenseman last season (31; 11 goals, 20 assists in 45 games for Lulea). … Morgan Barron, F: The 21-year-old agreed to an entry-level contract July 31 after he scored 32 points (14 goals, 18 assists) in 29 games at Cornell University last season. If the Rangers prefer Barron at center, he could help a position of need in the long term.