Amsterdam police made 25 arrests during the build-up to Ajax's Champions League clash at home to Manchester City.
Fans of the two clubs clashed in the city and the arrests were made for public violence offences, a spokesman confirmed, after troubled flared around 5pm.
"There have been 25 arrests before the Champions League match for public violence, mostly in the red light district," the spokeswoman said. "Police first took action at 5pm. Most of the fans that have been arrested are from Ajax.
"The city centre was very busy but now as the match approached it is getting calmer and more quiet as the fans head to the stadium. We were aware that it would be busy before and after the match and we had deployed extra police to deal with this.
"We hope that it will remain calm after the match."
Information from the Press Association was used in this report.