EDEN PRAIRIE, Minn. — Minnesota Vikings backup linebacker Erin Henderson has been suspended for four games for violating the NFL’s policy on performance-enhancing substances.

The league announced the punishment Tuesday. The suspension covers Minnesota’s final three regular-season games and first playoff game. The NFL does not specify the substances for which players test positive.
Henderson is the younger brother of fellow linebacker E.J. Henderson, who broke his left leg last week and is out indefinitely.
Erin Henderson has played primarily on special teams since signing with the Vikings as an undrafted free agent in 2008.