Vikings cornerback A.J. Jefferson was jailed this morning at the Hennepin County Public Safety Facility after being arrested on a domestic assault complaint. Jefferson, 25, is in his fourth NFL season. He suffered a neck injury in yesterday's 26-26 tie at Green Bay. Details of the charges, following an arrest by the Eden Prairie police department, are not yet available. Vikings coach Leslie Frazier has his Monday press briefing at 12:30 p.m. It's the second arrest this month of a Vikings player. Receiver Jerome Simpson was arrested for drunken driving on Nov. 9.