Time to face the music. Green Bay Packers linebackers Clay Matthews and Julius Peppers will meet with the National Football League today about an Al Jazeera America documentary accusing them of performance-enhancing drug use. Pittsburgh Steelers linebacker James Harrison and free agent linebacker Mike Neal will follow, after the NFL threatened suspensions if they didn’t cooperate with the internal investigation. The league already cleared the biggest accused name, now-retired quarterback Peyton Manning. All the players have denied using PEDs, and it’s unclear when the NFL’s probe will conclude.