The NFLPA informed its board of representatives Tuesday that the league proposed 35% of player salaries be held in escrow this season to help manage costs in case revenue is impacted by the pandemic, sources told NFL Network's Tom Pelissero.
The union reportedly maintains any such deal should be collectively bargained.
"Basically, we told them to kick rocks," NFLPA executive Don Davis told players on a conference call, according to Pelissero.
Many of the league's superstar players spoke out against such a proposal.
The two sides are also at odds over the use of coronavirus-related face shields on helmets, according to Mark Maske of the Washington Post. The NFL wants them to be mandatory, but the players' association wants to only encourage use during training camp and evaluate them via testing and feedback before the season.
Face shields are already a popular item among collegiate programs.
The NFL and players' association have recently disagreed on other COVID-19 protocols ahead of the 2020 season. While the league reportedly plans to shorten this year's preseason to two games, the union is against having any August contests at all.