Sheffield Wednesday have defended their stewardship after reports of overcrowding in the FA Cup draw against Newcastle on Saturday.
On Wednesday they submitted “comprehensive observations” to the FA and will help its investigations.
They added that the number of stewards outside “exceeded requirements”.
Ninety-seven Liverpool fans died after a crush in the same Leppings Lane End stand in Hillsborough in April 1989 during the FA Cup semi-final between Liverpool and Nottingham Forest.
On Tuesday, the government’s sports ground safety adviser – the Sports Grounds Safety Authority (SGSA) – said it was “concerned” by the reports and will begin a review.
The FA have requested information from both clubs while the Newcastle United Supporters Trust have asked anyone involved to contact them.
In his first response, Wednesday said: “While it is inappropriate to describe the bid in detail at this time, the club feel it is important to highlight that the number of stewards in place in the visitors’ section of the stadium has exceeded the security certificate requirements.
“The allocation of tickets issued to Newcastle supporters was also absolutely in accordance with the security certificate.
“Furthermore, fewer supporters entered the visitors’ turnstiles when lined up on the number of tickets allocated and sold.
“The turnstiles were opened 30 minutes earlier than a normal matchday, two hours before kick-off at 4:00 p.m., to allow Newcastle supporters to enter the stadium as quickly as possible.
“There were no reports of injuries or medical assistance required on the West Stand on record with the club’s first aid operations manager before, during and after the match.”