Jack Eichel's camp is making one last attempt to convince Buffalo Sabres management to let him get his preferred surgery, sources told ESPN.

Eichel, 24, has a herniated disk in his neck, and there is now urgency to have it addressed as soon as possible. Initially, Eichel was hopeful that the Sabres would trade him to a team that would allow him to get a disk replacement surgery. The Sabres prefer Eichel receive a fusion surgery, as a disk replacement has never been performed on an NHL player. Under NHL collective bargaining agreement rules, teams have the final say on how to treat injuries.