The capacity in Sheffield Wednesday's Hillsborough stadium away end has been cut after a review into complaints of overcrowding by visiting supporters.
Newcastle United fans raised safety concerns during an FA Cup third round tie on 7 January.
There were 4,500 Newcastle fans in the Leppings Lane End for the game.
Ninety-seven Liverpool fans died after a crush at the 1989 FA Cup semi-final against Nottingham Forest at Hillsborough.
According to the Reuters news agency, footage on social media from the game showed congestion around the exit to the tunnel in the Leppings Lane End, with a number of Newcastle fans claiming there was a lack of stewarding before kick-off.