The NFLPA has called for grass to be installed in all NFL stadiums to improve player safety in the wake of Aaron Rodgers suffering a season-ending Achilles injury.

MetLife Stadium, the home of the Jets and Giants, installed a new surface earlier this year called FieldTurf, which is softer and has a more forgiving feel than the stadium's previous synthetic turf.

"Moving all stadium fields to high quality natural grass surfaces is the easiest decision the NFL can make," NFLPA executive director Lloyd Howell said. "The players overwhelmingly prefer it and the data is clear that grass is simply safer than artificial turf. It is an issue that has been near the top of the players' list during my team visits and one I have raised with the NFL."