An Anglo-German diplomatic football row has emerged in the last 24 hours because of this headline on the back page of the Daily Mirror...
And this headline on the The Sun's website.
Clearly very pissed off, Bayern then points out that it was fined and rebuked by UEFA, European football's governing body, for breaking the same rules.
Some of the Allianz Arena will be shut for the return leg, after some Bayern fans turned up with a banner displaying the legend "Gay Gunners" in their second round match against Arsenal.
Bayern was fined 10,000 Euros and 700 seats will be empty. The club's argument seems to be: if we're going to get punished for that, British newspapers should get punished for this.