One Premier League club has reportedly informed its players that they have the right to turn down Project Restart - the plan to resume top-flight football in England.
Players at rival sides are outraged that they have not received the same offer from their own clubs, according to The Sun, after hearing about the opt out option via a WhatsApp group.
The group was initially set up for the captains of the 20 Premier League clubs, but now has over 100 members.
The unnamed squad has been told that they may opt out of the initiative over health and safety concerns - and the move could prompt other clubs to do the same.

Project Restart aims to resume football on 12 June but could face disruption due to health and safety concerns, with some players feeling they are being told to return to action before it is safe to do so.
However, only one club has so far informed its players that they are free to not play a game, or even the remainder of the season, if they do not feel comfortable.
If you’re unable to see the survey, click here.
This has left stars at other clubs questioning why they have not been extended similar blanket offers amid concerns that players who choose not to play will be criticised individually rather than as a united front.
After teams returned to training in Germany, three people at Bundesliga club Cologne tested positive for coronavirus, heightening fears among players in other leagues who are set to return to action.
Some players feel like their voice is not being heard, which was echoed by Chelsea manager Frank Lampard after Friday's meeting between Premier League chiefs.
“The things I welcomed were the fact player and staff safety will come first and the fact that they are going to have conversations with players and managers," Lampard told BT Sport.
"That hasn’t really happened, to be honest.”