Tottenham have forced Manchester United into a major kit change ahead of the Europa League final because of a tradition that dates back 64 years.
The two English sides will battle it out in Bilbao for a spot in next season's Champions League which can only be claimed by the winner.
As both sides will finish outside of the European places in the Premier League - with Man United in 16th and Spurs in 17th - the final at San Mames has an added element of importance for two sides who would otherwise expect to be in Europe.