Police said they arrested 28 people after fans of Chelsea and Real Betis clashed several times ahead of Wednesday's Conference League final in the Polish host city of Wroclaw . For much of the day, police officers kept a cordon around Chelsea fans celebrating in the city's main square. There was a large police presence in Wroclaw ahead of Wednesday's Conference League final. Chelsea, twice Champions League winners and six time English top-flight champions, arrive at the final having secured fourth place in the Premier League on Sunday, giving them Champions League football next season. "We are loving every second of this , we're going to celebrate afterwards, and we hope Chelsea fans will cry."