James Harrison, Clay Matthews among NFL players facing suspension if they stay mum on steroid allegations – New York Daily News
Harrison denies using PEDs, sends affidavit to NFL
James Harrison Fires Back At PED Allegations
James Harrison incident challenges NFL's gambling double standard
North State Journal Vol. 7, Issue 46 by North State Journal - Issuu
NFL gives players accused in Al Jazeera story three choices — none of them good
N.F.L. Clears James Harrison, Clay Matthews and Julius Peppers - The New York Times
In affidavit to NFL, James Harrison denies PED use
Steelers' James Harrison denies PED use in affidavit sent to NFL
James Harrison Refusing NFL's Interview is the Right Choice
NFL Investigation Into Peyton Manning Concludes That There Is 'No Credible Evidence' He Used HGH
NFL says James Harrison, Clay Matthews will be suspended if interviews not conducted