Owners have been meeting to discuss a number of issues, most notably the anthem protests, which have been fiercely criticised by US President Donald Trump.

One proposal mooted, according to Sports Illustrated's MMQB, was that teams with players kneeling during the anthem receive 15-yard penalties.

Another suggestion was that the home team decide whether teams come out of the locker room for the anthem or not.

The protests at police brutality and racial inequality were begun by Colin Kaepernick in August 2016.

Kaepernick and Eric Reid, who are both currently without a team, are suing the NFL. They allege that NFL teams colluded to keep them unemployed.

Last November, the NFL pledged $89m to social justice causes considered important to African-American communities over seven years as part of discussions over the anthem protests.