The 4 Nations Face-Off is an international ice hockey tournament. Matthew Tkachuk, a star forward for the Florida Panthers, sustained a lower-body injury while representing Team USA in the tournament. He will miss the Panthers' upcoming game. - Matthew Tkachuk suffered a lower-body injury during the 4 Nations Face-Off tournament while playing for Team USA. - Tkachuk will miss the Florida Panthers' game against the Seattle Kraken on Saturday due to the injury. - Panthers coach Paul Maurice confirmed Tkachuk's absence from the game. - The extent of Tkachuk's injury will be better understood upon his return to the team.