Varlamov will be between the pipes on the road against the Panthers on Thursday, Denis P. Gorman of Newsday reports.
Mayfield (lower body) underwent season-ending surgery, the team announced Tuesday.
Sorokin allowed three goals on 29 shots in a 4-0 loss to New Jersey on Sunday. The fourth goal was an empty-netter.
Lee was given 20 PIM and ejected from Sunday's 4-0 loss to New Jersey.
Thiesing inked a two-year, entry level contract with the Islanders on Friday.
Sorokin stopped 18 of 23 shots in Thursday's 6-3 loss to the Red Wings, with Detroit's final goal getting scored into an empty net.
Varlamov will tend the twine at home against the Jets on Saturday, Andrew Gross of Newsday reports.
Sorokin will be between the visiting pipes in Detroit on Thursday, according to Andrew Gross of Newsday.
Sorokin will start Tuesday at home against Carolina, per Stefen Rosner of NHL.com.
Nelson picked up two assists, one shorthanded, in Sunday's 5-2 loss to the Rangers.
Horvat scored two goals, one shorthanded, in Sunday's 5-2 loss to the Rangers.
Sorokin made 26 saves on 31 shots in Sunday's 5-2 loss to the Rangers.
Varlamov made 26 saves in Saturday's 4-3 overtime loss to Ottawa.
Bortuzzo (lower body) was activated from long-term injured reserve Friday, per CapFriendly.
Sorokin will be between the road pipes Sunday against the Rangers, according to Stefen Rosner of NHL.com.
Varlamov will patrol the home crease versus Ottawa on Saturday, Stefen Rosner of NHL.com reports.
Martin (lower body) is good to play Thursday versus Buffalo, according to Stefen Rosner of NHL.com.
Martin (lower body) practiced Wednesday and will be a game-time decision in Buffalo on Thursday.
Sorokin is expected to start on the road against Buffalo on Thursday, per Andrew Gross of Newsday.
Sorokin is expected to start on the road against LA on Monday, Andrew Gross of Newsday reports Saturday.
Varlamov will defend the road net Sunday against Anaheim, according to Stefen Rosner of NHL.com.
Sorokin will patrol the road crease versus the Sharks on Thursday, Stefen Rosner of NHL.com reports.
Fasching (illness) was activated from long-term injured reserve Tuesday.
Martin (undisclosed) is expected to play Tuesday against St. Louis, Arthur Staple of The Athletic reports.
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.