Max Domi joined Team Canada for his first practice in Prague on Sunday, skating on a line with Connor McDavid and Matt Duchene.
Brad Marchand was in that position on Saturday but did not practice due to a lower body injury.
Corey Perry is expected to arrive on Tuesday which would give head coach Bill Peters a full contingent of 13 forwards to juggle.
Only five defenceman skated on Sunday but no pairings were decided. However, Morgan Rielly is expected to play with Chris Tanev.
Team Canada opens the World Hockey Championship against the United States on Friday (TSN, 9am et/6am pt).