Mamin signed a deal with CSKA Moscow of the KHL on Monday, George Richards of Panthers Press Box reports.
Mamin spent three years with CSKA Moscow before returning to the Panthers for the 2021-22 campaign. He scored 14 points while averaging 11:54 of ice time in 40 games during the regular season. The 27-year-old was expected to hit unrestricted free agency this offseason.