The Raiders plan to sign Fluker, Jordan Schultz of BleacherReport.com reports.
Fluker was reinstated from a six-game suspension Tuesday, Aaron Wilson of Sportstalk 790 Houston reports
Fluker (suspension) will miss the first six weeks of the season, Field Yates of ESPN reports.
Fluker (knee) was released with an injury settlement by the Dolphins on Monday, per the Dolphins' official site.
Fluker underwent meniscus surgery Thursday and was placed on injured reserve, Tom Pelissero of NFL Network reports.
Fluker agreed to terms on a contract with the Dolphins on Monday, Barry Jackson of the Miami Herald reports.
Fluker (knee) is active for Saturday's divisional-round game against the Bills, Jamison Hensley of ESPN.com reports.
Fluker (knee) was listed as questionable on the Ravens' final injury report.
Fluker (ankle) is active for Tuesday's game against Dallas.
Fluker (undisclosed) is active for Wednesday's game against Pittsburgh, Jeff Zrebiec of The Athletic reports.