She said most people attending the match would be there to watch an “exciting football game between two teams that have a lot of local history”.
Reading’s League One draw at Exeter was stopped after a report of a racist comment towards a City player by a visiting supporter on 11 October.
Ch Insp Richards said she did not believe racist incidents had become more prevalent but that people had became more aware of the issue.
“Officials and players now feel confident to report it and they understand that the police will deal with offenders robustly,” she said.
