A Newcastle United fan was allegedly stabbed in Milan the day before the Champions League return.
The Magpies will face AC Milan at San Siro on Tuesday evening with thousands of fans turning out to support their team in Europe’s top competition.
talkSPORT understands Newcastle are aware of the reports and are in contact with local authorities.
Supporters arrived in Milan on Monday and were spotted on social media touring the city.
One clip shows fans taking part in human bowling in the rain before things take a sinister turn in the evening.
Others will follow. For the latest on this and other breaking news, listen to talkSPORT