Anthony Mantha will not play, and Dylan Larkin is still unknown, as the men’s hockey world championship rolls into quarterfinal play Thursday in Slovakia.

The two star Red Wings' forwards both made news during Tuesday's 3-0 Canada victory over Team USA in the final game of the preliminary round.

Mantha was given a one-game suspension Wednesday by the International Ice Hockey Federation for a hit to the head of Team USA forward Colin White during Tuesday’s game.

Mantha was given a two-minute penalty for an illegal check to the head on the play, and a 10-minute misconduct.

"The Panel finds that Mantha’s actions were dangerous, created a serious risk of injury to White, and violated IIHF Official Rule 124 (Checking to the Head and Neck). Mantha could have played the puck rather than making the check," the IIHF said in a statement. "Based on these facts, the Disciplinary Panel determined that because Mantha will be sanctioned with a one game suspension. He will be eligible to return for the semi-final round should Canada advance."

Tied for the tournament lead with seven goals (in seven games), Mantha will not dress for Canada (6-0-1) in Thursday’s quarterfinal game against Switzerland. Mantha has 12 points in the tournament (five assists).