The Facts: Fuller will be active and play Sunday against the Kansas City Chiefs, a league source tells Chronicle staffer Aaron Wilson.

Diehards Line: Fuller is making his return from a groin injury. According to Wilson, Fuller has made steady progress since getting hurt against the Tampa Bay Buccaneers, practicing for the past two weeks in advance of this AFC divisional-round playoff game. One of the most dangerous deep threats in the league, Fuller hasn't experienced any setbacks since his December injury. Although Fuller isn't expected to be 100 percent due to soft-tissue injuries that have forced him to miss five regular-season games and the playoff game against the Buffalo Bills, he is expected to have solid mobility against Kansas City. Tight end Jordan Akins (hamstring) and safety Jahleel Addae (knee, Achilles) were ruled out and didn't travel with the team to Kansas City. Starting tight end Darren Fells (hip, questionable) is expected to play and will work in tandem with Jordan Thomas.