Grigorenko was the No. 12 pick in the 2012 NHL Draft after compiling 40 goals and 85 points last season in 59 games for the Quebec Remparts of the Quebec Major Junior Hockey League.
John Vogl of the Buffalo News tweeted Friday that Sabres general manager Darcy Regier announced Grigorenko would be on the final roster. Colleague Mark Harrington added that Regier said it would be a "coach's decision" as to whether he is in the lineup against the Philadelphia Flyers on Sunday afternoon (12:30 p.m. ET, NBC, TSN).