Kovalev signed a one-year contract with the Panthers that Bob McKenzie is reporting is worth $1 million and also contains bonuses for games played.
Kovalev came to camp with Florida on a tryout contract after playing last season in the Kontinental Hockey League. He last played in the NHL at the end of the 2010-11 season with the Pittsburgh Penguins.
Teams must announce their 23-man rosters for opening night by 5 p.m. ET Friday.
You know what? We've played in some pretty special buildings along this playoff run so far. You start in Detroit, you go to Montreal, you come here … I think it's the first team to beat three Original Six teams to get to the Final if I'm not mistaken. That says how tough the road has been. Those are tough places to win.
— Lightning forward Steven Stamkos after Game 7 win vs. Rangers on Friday in New York