MetLife Stadium changing playing surface in 2023 amid backlash from players, NFLPA, but not to natural grass
NFL Players Association president calls for grass surfaces to be used, NFL News
NFLPA chief demands NFL rule change after New York Jets star Aaron Rodgers' injury - Football - Sports - Daily Express US
NFL players union renews call for grass fields after Aaron Rodgers' injury, National
NFL players 'significantly safer' on grass than turf, association says
NFL players urge league to nix turf, go with grass
NFLPA calls on 6 venues to improve playing surfaces
NFLPA President Calls On NFL To Eliminate Artificial Turf - RealGM Wiretap
NFL Players Association calls on 6 venues, including Indy's, to change playing surfaces – Indianapolis Business Journal
NFLPA calls for 'immediate replacement and ban' from slit-firm turf fields
Aaron Rodgers injury: NFLPA calls for stadiums to switch to natural grass
NFL Players Association calls on NFL to switch all fields to natural grass - WBBJ TV
NFL players are taking a stand against turf fields but the league doesn't care
NFL Player' Association calls for ban on slit-film turf
NFLPA calls on 6 venues, including Ford Field, to improve playing surfaces