Clowe, who has suffered multiple concussions in his career, is recovering from another one he sustained last year. According to Chere, Clowe has even considered retirement.
"It won't be my decision," Shero said. "It will be Ryane and the doctors who make that decision."
Clowe has $14.55 million and three years remaining on the five-year deal he signed in 2013. He has 30 points in 56 games with the Devils in two seasons.