Sixty-thousand Arsenal fans will travel to the Emirates Stadium on Wednesday tonight to enjoy their first Champions League home game of the season against FC Basel.
Having come away from Paris Saint-Germain's Parc des Princes with an impressive point, the pressure will be on Arsene Wenger's men to seal all three against the Swiss outfit and take charge of Group A.
To help their team to victory, a number of Gooners will be wearing their replica home shirts but they will find their favourite players wearing something entirely different to that.
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That is because UEFA have ordered Arsenal to wear their away strip. It is a curious situation that last occurred in the 1998/99 season when the same order was issued before Arsenal's home game against Lens.
But how did the governing body come to this decision? Take a look at the full explanation below.
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Essentially, Basel's away kit is all white and is deemed too similar to Arsenal's home shirt, which has white sleeves on a red shirt as well as white shorts and socks. Coincidentally, Basel's home shirt is half blue and half red and is also seen as a clash in the eyes of UEFA officials.
As Basel don't have a third strip, Arsenal will have to wear their yellow kit while Basel will wear their home kit.
We have inserted pictures of Basel's kits below so you can decide whether UEFA were right to issue the order.
UEFA have had these regulations in place before the Champions League was even reformatted but it is far from foolproof. In October 2000, Arsenal were forced to change kits at half-time after the referee complained their dark blue shirts clashed with Sparta Prague's claret home kit.
It didn't seem to affect Arsenal's concentration with Ray Parlour, Lauren, Lee Dixon and Kanu all scoring in a 4-2 win at Highbury. Arsene Wenger will be hoping for a similar result tonight.
Basel have an excellent record against Premier League teams recently with wins over Chelsea, Liverpool and Tottenham to boast about. They're also dominating their domestic league, winning all nine of their games so far and storming into an 11-point lead. It is for that reason Wenger warned his players not to underestimate their opponents.
"They have beaten everybody in England and have a very good record. They are a team who are used to playing in the Champions League," said Wenger.
"It’s not a newcomer or a beginner in the Champions League, they have huge experience in the competition. They have experience and we face a team who is well organised, not under pressure as they dominate always their league.
"They know they will come back in the Champions League again next season. And they produce players as well.
"This experience goes through the generations and this is why they’re not intimidated. I don’t expect them to be intimidated at all. On the other hand, they have nothing to lose. That’s always dangerous."