Packers LB Clay Matthews says a "cheap shot" by Eagles tackle Allen Barbre is to blame for his shoulder injury.
The NFLPA sent letters on behalf of the four players named in the Al-Jazeera report, requesting evidence before they would agree to be interviewed. Retired Peyton Manning likely will cooperate.
The NFL Players Association contends there's no evidence to merit an investigation by the NFL into an Al-Jazeera report alleging several players' use of performance-enhancing drugs.
Julius Peppers, Clay Matthews and James Harrison are expected to meet with the NFL next month as part of an investigation into an Al-Jazeera America report on PEDs.
Peyton Manning addressed the Al Jazeera report that identified him as a recipient of HGH, telling ESPN that he is "furious" and "disgusted" while adamantly denying that he has ever taken PEDs.
A report by Al Jazeera alleges a pharmacist sent human growth hormone to Peyton Manning when he was recovering from 2011 neck surgery. Manning told ESPN: "It's a joke. It's a freaking joke."
