The report said the prognosis was confirmed by a team source and Hertl was undergoing an MRI to determine the specific damage to his knee.
Hertl, who leads NHL rookies with 15 goals and 25 points in 35 games, took a knee-on-knee hit from Brown with 61 seconds left in the first period and immediately went to the dressing room. Brown was given a five-minute kneeing penalty and a game misconduct.
I've never seen anything like that. The great thing is I don't know how many times guys bailed me out where they had to score to keep it alive and they did every time. It was amazing. It's not the way we draw it up, to go 20 rounds here, but obviously it's a big win.
— Florida goalie Roberto Luongo after the Panthers defeated the Capitals in the longest shootout in NHL history on Tuesday