Allen (undisclosed) was released by the Dolphins after reaching an injury settlement, Adam Schefter of ESPN reports.
Allen started Friday's preseason loss at Tampa Bay, logging eight of 77 of the Dolphins' offensive snaps.
Allen (knee) participated in 11-on-11 drills for the first time Tuesday, Barry Jackson of the Miami Herald reports.
Allen (undisclosed) could miss the start of the regular season, Joe Schad of The Palm Beach Post reports.
Allen (undisclosed) was activated off the Dolphins' PUP list Wednesday, Alain Poupart of the team's official site reports.
Allen (undisclosed) isn't expected to stay on the PUP list for long, Joe Schad of The Palm Beach Post reports.
Allen was placed on the physically unable to perform list by the Dolphins on Sunday.
Allen (undisclosed) did not participate in mandatory minicamp Tuesday, Armando Salguero of the Miami Herald reports.
Allen did not participate in OTAs on Tuesday due to an undisclosed injury, Safid Deen of the South Florida Sun Sentinel reports.
Allen will sign a two-year, $7 million deal with the Dolphins, Josina Anderson of ESPN reports.