Mayfield (lower body) underwent season-ending surgery, the team announced Tuesday.
Mayfield is expected to miss 4-6 weeks with a lower-body injury. The 31-year-old defender was placed on long-term injured reserve Tuesday, per Arthur Staple of The Athletic.
Mayfield (lower body) won't join the Islanders on their upcoming trip to Dallas and Detroit, Andrew Gross of Newsday reports.
Mayfield (lower body) won't play Saturday against Tampa Bay.
Mayfield (upper body) was activated from injured reserve Sunday and is expected to play against Pittsburgh, Stefen Rosner of The Hockey News reports.
Mayfield (upper body) will not be in the lineup Friday versus Washington, according to Stefen Rosner of The Hockey News.
Mayfield (upper body) was placed on injured reserve Friday.
Mayfield is dealing with an upper-body injury and isn't expected to play Wednesday versus Anaheim.
Mayfield (lower body) is expected to play versus the Capitals on Thursday, Andrew Gross of Newsday reports.
Mayfield (lower body) will be a game-time decision versus the Capitals on Thursday.