"Injuries are unpredictable, and if there's somebody that's working harder than him, I have not seen it in trying to get back," Cooper said, according to team reporter Bryan Burns. "He's rehabbing. Our staff has been working with him on a daily basis, and in situations like this, you never know."
The 30-year-old suffered a lower-body injury during Phase 2 of the league's return-to-play plan. He's managed to join some practices and skate on his own since.
Stamkos recorded 29 goals and 37 assists in 59 games during the 2019-20 season.