Manchester City and Chelsea fans arriving in Porto for the Champions League final were involved in a violent clash with police on Thursday night, MySportDab reports.
Video footage shows a number of fans in a violent clash with the local police after the bars in Porto were closed at 10.30pm.
The Champions League final is scheduled for Saturday and things have been gone as planned in Porto.
In the video from Thursday night, there was a chaotic scene with people running across a road, horns going wild, whistles and yells over night.
According to reports, Chelsea and City fans clashed with Porto police and got into an altercations that could lead to more police presence on the streets.
Also, on Wednesday night, Manchester United and City fans violently clashed and they could only be stopped by baton-wielding military police.
The City fans celebrated far too much after seeing United lose the Europa League final on Wednesday night.
Their jubilation in an Albufeira resort resulted into the fight between Manchester City and United fans around the popular district bar Oura.
An eyewitness said: ‘It all started with pushing and shoving, then fighting in the street.
‘Military police had to come in with batons to stop the fight.’
There were no serious injuries from the incident.
Manchester City are prepared to face Premier League rivals Chelsea in the Champions League final in the Estadio do Dragao on Saturday.
A total of 16,500 fans are allowed into the stadium, 33 per cent of the 50,000 capacity, but far more have travelled to Porto, Portugal.