Updated

MISSISSAUGA, Ont. -- Owen Sound Attack center Joey Hishon will miss Wednesday's MasterCard Memorial Cup game against the Mississauga St. Majors with an undisclosed injury after he was elbowed in the face late in the team's tournament opener Saturday against the Kootenay Ice.

Attack general manager Dale DeGray said he expects Hishon, whose 24 playoff points (5 goals, 19 assists) tied for the Ontario Hockey League playoff scoring lead, to return later in the tournament. He's missed two games. If Owen Sound loses to Mississauga, they'll play Kootenay in Thursday's tie-breaker game. A win sends them to Friday's semifinal.

While Hishon passed a baseline test earlier this week, DeGray said the 19-year-old did not suffer a concussion.

"I don't know if I want to use that term because (he) probably technically wouldn't be deemed having a concussion," DeGray said Wednesday here inside the Hershey Centre. "But if Joey Hishon is not 100 percent, we can't put Joey back on the ice. There's a lot more involved in the game."

Hishon, taken by the Colorado Avalanche with the 17th pick of the 2010 Entry Draft, is disappointed to be sitting.

"He would love to be a part of it to show his skill," Attack coach Mark Reeds said. "He could be a difference-maker the other night in the (3-2 overtime loss) against the Sea Dogs."

With 5:35 left in what became a 5-0 Owen Sound victory, 6-foot-4 Kootenay captain Brayden McNabb met the 5-10 Hishon near center ice. As Hishon tried to get away from the hit, McNabb elbowed him. Hishon did not return to the game.

McNabb, a defenseman taken in the third round in 2009 by the Buffalo Sabres, received an elbowing major, a game misconduct and was suspended for Sunday's game, a 2-1 Kootenay loss to the host Majors. It was the first suspension at a Memorial Cup since 1999.

The winner of Wednesday's game will earn a spot in Friday's semifinal. Hishon's presence would help. He led the team in the regular season with 49 assists and tied for the team lead with 86 points.

"Joey Hishon's probably one of the top-skilled guys in the CHL, and he can't play," DeGray said. "That's wrong. It's too bad; it's too bad for him, and it's too bad for our organization. Here we are trying to put foot forward, and we don't have one of our top players in the lineup."