Sweden's William Nylander got off to a promising start in Saturday's world junior championship preliminary match against Switzerland until a brutal open-ice hit took him out of the game in the first period.  

The Toronto Maple Leafs prospect put his team on the board just one minute and 21 seconds into the opening frame. 

Unfortunately, the 19-year-old winger didn't have many more opportunities with the puck. Midway through the period, Swiss forward Chris Egli levelled him with a hit to the head at centre ice. 

Both players left the ice following the play. Nylander initially returned to the bench, but was escorted to the locker room by team trainers and did not return. 

Egli received a five-minute penalty and a game misconduct for the illegal check to the head. 

Sweden went on to a 8-3 thrashing of the Swiss in the absence of one of their top players.

Nylander was reportedly taken to the hospital, but the team would not elaborate on his condition or whether he would participate in any future games at the tournament. 

The International Ice Hockey Federation announced Sunday that Egli was suspended for three games. He will miss the rest of Switzerland's preliminary games, but he will available for the playoffs if the Swiss advance.