The Maple Leafs said the 25-year-old rookie is expected to make a full recovery and a “more accurate timeline for his return” will be given in three months.
“It was obviously scary there, seeing that much blood,” Toronto’s John Tavares said. ”Obviously, a guy that we care deeply about and was having a great night and playing tremendous for us, so thoughts are with him.”
Mikheyev scored his seventh goal of the season before suffering the injury. He also has 15 assists in 38 games.
Information from The Associated Press was used in this report.