Clubs playing across Europe this season will once again need to make sure they stay in line with shirt sponsorship regulations.
The opening night of the Champions League provided two examples: Aston Villa and Stuttgart both had to make changes to their shirts for their games away to Young Boys and Real Madrid respectively on Tuesday evening.
Villa replaced their usual Betano front-of-shirt sponsor to the logo of children's hospice and charity Acorns for their three-goal victory in Bern, while Stuttgart were sponsorless as they lost 3-1 in Madrid. The German side usually wear the logo of betting company Winamax.
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UEFA regulations spell out shirt sponsorship changes
The changes were because UEFA rules and the different rules on advertising in different countries come to bear on what clubs can and can't wear on their shirts.
There is a blanket ban on tobacco and 'strong alcohol' in UEFA competition, with the latter defined as ' any beverage with an alcohol content of more than 15% abv unless the applicable domestic legislation sets a lower limit'.
Teams must also respect and bans or restrictions set by the country in which a match is taking place - and in these cases, both Switzerland and Spain have banned gambling adverts, including shirt sponsors.
Premier League clubs voluntarily agreed last year that they would no longer accept gambling companies as front-of-shirt sponsors starting from the 2026/27 season, but for now they remain popular in the English top flight.
Aston Villa, Bournemouth, Brentford, Crystal Palace, Everton, Fulham, Leicester City, Nottingham Forest, Southampton, West Ham United and Wolverhampton Wanderers all have betting companies as their main shirt sponsors this season.
Villa are the only one of those 11 who will play in UEFA competition this season. Scotland's lone Champions League representative, Celtic, will have to remove Dafabet from their shirts when they visit Italy to take on Atalanta next month.
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