Racing PositionsNFL stars who unretired: Aaron Donald joins Deion Sanders, Philip Rivers2hKevin SeifertAaron Donald joins MJ, Serena on list of athletes to return after extended time away2hESPN StaffTracking NFL roster cuts, moves: Aaron Donald unretires, returns to Rams2hESPN staffStar DT Donald unretires to rejoin loaded Rams2hSarah BarshopSource: Cowboys to cut Blue, go with Davis as RB22hTodd ArcherGrading NFL offseason trades: Sizing up RB Kaleb Johnson to the Packers3hSeth Walder, Ben SolakTitans parting ways with QB Levis, sources say3hTurron DavenportTracking preseason NFL trades: Who is on the move ahead of the season?3hESPN StaffSources: Broncos' Cooper placed on exempt list3hJeff LegwoldJacobs put on exempt list as Pack trade for RB2hRob Demovsky