NFLPA voices safety concerns over replacement refs

The NFL Players Association and NFL Referees Association have responded to the potential use of replacement officials this season by voicing concerns about player safety.

ESPN reported earlier this week that the league has begun compiling a list of replacement referees -- mostly from the low-college ranks -- and plans to start training them by May 1. The collective bargaining agreement between the NFL and NFL RA is set to expire on May 31.

NFLPA executive director JC Tretter and NFLRA...