The GAA says it will no longer be accepting screenshots of tickets for entry to matches.
Mobile tickets will now have to be downloaded to your phone wallet or printed in advance.
The organisation says this is standard practice and is being put in place to prevent GAA fans from being scammed.
However, fans aren't impressed.
There are claims that not everyone has a printer or a mobile wallet for entry.
There are fears it will exclude certain fans from entering matches.
