Sunderland AFC have reportedly taped-up the seats of supporters who refuse to sit down during games.
Fans who persistently stand have had their season tickets suspended, and the club has issued a statement on its website saying it must act to protect the safety and the view of other fans.
Head of safety and security Paul Weir said:
"We certainly don't wish to spoil the enjoyment of any supporters, we want a vibrant lively matchday atmosphere just as much as the fans do, but we also have legal obligations that we must be seen to be adhering to.
"We also have a duty of care to all of our supporters, including elderly and disabled fans who have contacted us very concerned that their enjoyment on a matchday is being compromised because people around them stand throughout the game.
"Naturally we want to ensure a safe, comfortable and enjoyable experience for everyone at the Stadium of Light and we'd ask supporters to listen to requests from stewards and help us to eradicate persistent standing for the sake of all fans."
A photo circulated on Twitter shows a seat with a note on it saying: "This season card has been suspended due to persistent standing."
Get the latest scores and updates from today's football fixtures
Kader Mangane has joined Sunderland on loan until the end of the season
Sunderland boss Martin O'Neill has spoken about the club's newest recruit - Alfred N'Diaye