Watch: Thousands of FC Koln fans march through London ahead of Arsenal clash

It's safe to presume that FC Koln fans are jacked up for the club's first European match in almost 25 years, set for Thursday against Arsenal.

Supporters arrived in London and brought Oxford Street to a complete standstill as they marched toward the Emirates Stadium.

Residents and employees in the area couldn't help but notice the noisy visitors as they chanted and banged drums during their advance through the streets.

Reports suggest at least 20,000 made the trip, as banks in Cologne ran out of British pounds thanks to the number of supporters grabbing foreign currency ahead of their trip, according to Felix Tamsut of DW Sports.