Tottenham Hotspur boss Mauricio Pochettino blasted the actions of Partizan Belgrade fans during last nights goalless draw in the Europa League.
The sick anti-Semitic banner was based on the logo to sitcom "Only Fools and Horses" with the Serbian fans changing to the words to "Only Jews and P***ies".
Police and security did not feel the need to remove the banner that was still on show until the end of the opening game in Group C.
UEFA will investigate the incident today and use evidence for Israeli referee Alon Yefet's report.
Disrespectful and unacceptable
Speaking after the game Pochettino, who joined the White Hart Lane club from Southampton over the summer, told reporters: "I didn't see but the club is aware. And if it is true, that it is very disrespectful.
"It is a shame as it was a great atmosphere. It is very disrespectful, unacceptable and a massive problem for us."
It took the shine anyway from a fantastic atmosphere generated by the home fans as they tried to intimidate the London club throughout the game.
Spurs could have gone ahead early on but Harry Kane could not convert Ben Davies' cross.
However, Pochettino and his side may look at the result as good point to gain, following the long trip, as Belgrade pressed for large periods of the match.
De ja vu
This is not the first time Belgrade have found themselves under scrutiny from UEFA. The Serbian's have been reported for crowd violence in 25 of their previous 36 European home fixtures.
Danny Rose, who was left in England by Pochettino, knows all too well about the actions of Serbian fans.
During an England under-21's match in 2012 the defender was a number of England players who were racially abused and targeted with missiles during the 1-0 win over their Serbian oppositions.
After the final whistle tempers flared and a mass brawl broke out between players and staff from both sides, Rose was eventually sent off by referee after the final whistle.
Michel Platini, UEFA President, continues to stress that there is a zero tolerance stance taken towards discrimination of any kind within football.
However, apart from the possibility of a minor fine, the most likely punishment will be sections of the home support being closed off for their next home game in the competition.
Back in 2007 the Serbian side, who surrendered their league title for the first time in seven years last season, were booted out of the then UEFA Cup for the hooliganism of their fans.