One of the most prominent debates that remains standing between the NFL and the NFLPA regarding return-to-play protocols is whether or not any preseason games will be played. The players union has already voted to formally recommend that no preseason games will be played, though reports are that the NFL remains unmoved on its stance to play two preseason games.
While the league in technicality does not need NFLPA approval within the CBA to make any kind of reduction of preseason games, this is a unique circumstances, of course. According to Jeremy Fowler, there is some belief that the preseason games may be relinquished by the NFLPA to get other things they want to see happen in the return-to-play protocols.