Zinedine Zidane avoided a very close call as a thrown bottle smashed the window that he was sat next to as Real Madrid arrived at Anfield.
Real face Liverpool in the second leg of their Champions League quarter final on Wednesday night, taking a 3-1 lead into the away game.
Ahead of the match Jurgen Klopp played down the chances of Reds producing one of their famous Anfield comebacks, saying it would be hard without fans in the ground.
Whilst no supporters will be let into Liverpool's home ground, one managed to cause a problem outside of the ground, by throwing a bottle at the coach carrying the Spanish side.
The bottle managed to smash the window next to Real's manager Zidane as they arrived for the match, but neither the Frenchman or anyone else was injured.
Liverpool fans threw a bottle smashing the window of Real Madrid team bus where Zidane was sitting pic.twitter.com/il0NF097uW- Rk (@RkFutbol) April 14, 2021
It is not the first time that Liverpool fans 'welcoming' the opposition to Anfield on a big Champions League night has caused controversy.
In April 2018, Klopp's side took on Premier League rivals Manchester City in the quarter finals, with the first leg at Anfield.
A large group of fans gathered outside of Anfield and many people threw bottles, cans and even flares at the bus carrying the City players.
The tactic may have worked as the Reds won the game 3-0 and beat City 2-1 in the away leg too, to make it through to the semi-finals.
Eventually Klopp's side went on to lose to Real in the final and on Wednesday they'll be hoping to get level of revenge.
Goals from Vinicius Junior and Marco Asensio put the hosts 2-0 up last week before Mohamed Salah pulled one back for the English side.
Vinicius scored his second to make it 3-1 and make Real favourites to go through, although the away goal makes it extremely interesting.
Can Liverpool produce one of their great European nights without the fans? Let us know your thoughts in the comments.