Liverpool football club has requested what's being described as an 'extraordinary meeting' with Roma to discuss security.
Officials from Liverpool are also set to meet representatives of UEFA and Italian police.
It comes ahead of the Champions League semi-final second leg in Rome on Wednesday.
53-year-old Sean Cox from Dunboyne in Co Meath was attacked ahead of the first leg at Anfield on Tuesday.
He remains in a critical condition in hospital following the attack, and two men have been charged in connection with the incident.
Police have warned Liverpool fans without a ticket for the match not to travel to the Italian capital.
In a statement ahead of today's meeting with officials, Liverpool said the club has "sought clarity on a number of issues surrounding the matchday operation since the draw was made and is hoping this extraordinary meeting will provide the necessary reassurances and essential information".
It adds: "This, if provided, will allow the club to fully inform supporters of the measures that will be in place."