NEW YORK (AP) -- Green Bay's Clay Matthews and Julius Peppers along with Pittsburgh's James Harrison will be interviewed next month by NFL officials in connection to a report that linked them to the use of performance-enhancing drugs.
The league will conduct the interviews when training camps open.
The league's letter notifying the players also mentions defensive lineman Mike Neal, a free agent who will be interviewed. It does not mention the now-retired Peyton Manning, who also was cited in Al-Jazeera's doping report in December.
But USA Today, citing an unnamed source, reported that an investigation into Manning's possible involvement also is progressing.
