Team player representatives are scheduled to convene on a conference call Friday morning as the NFLPA works to finalize an agreement with team owners on the rules and finances for the 2020 NFL season, according to sources.

The two sides are still negotiating on at least three significant issues:

• Rules for the training camp acclimation period.

• Procedures via which players could opt out of the season for coronavirus-related reasons and what would happen to the contracts of those who do.

• How to handle the league's long-term finances and salary caps of future years in the wake of projected 2020 revenue loss.