Brandon Bolden, a rookie running back from Mississippi, was suspended four games by the NFL on Friday for violating the league’s policy on performance-enhancing substances. The league announced the suspension, but would not specify which substance triggered the action.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help