Four Ajax fans have pleaded guilty to affray after they hurled concrete at police and Tottenham Hotspur fans before the Champions League semi-final on Tuesday.

The group broke up pieces of pavement and wall and threw them at rival fans on Brereton Road, near the Tottenham Hotspur Stadium.

Three police officers were assaulted whilst attempting to intervene, but were not seriously injured.

Police previously condemned the “serious disorder” and said the behaviour was “totally unacceptable.”

Marvin Kerkhof, 29, Stefan Tromp, 34, and Fahd Amri, 23, all from Amsterdam, pleaded guilty to affray at Highbury Corner Magistrates’ Court on Thursday.

Boy Patrick Calvin Fuchs, 28, also from Amsterdam, admitted affray and assault on an emergency worker.

All four men were remanded into custody to appear at Wood Green Crown Court for sentencing on a date yet to be set.

Four other men were charged with separate incidents ahead of the semi-final clash.

Samuel Greenaway, 52, from Enfield, was charged with a racially aggravated public order offence and bailed to appear at Highbury Corner Magistrates’ Court on May 15.

Tommie Arjen Van Der Woude, 26, from Amsterdam, pleaded guilty to affray on Thursday and was sentenced to 10 weeks’ imprisonment and a six year football banning order.

Mohammed Hassan Mohamoud, 40, of Amsterdam, was charged with possession of a Class B drug and bailed to appear at Highbury Corner Magistrates’ Court on May 15.

Diego Van Der Leeuw, 30, also from Amsterdam, was arrested on suspicion of a public order offence and common assault.

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He received a caution for the public order offence and was released under investigation for common assault.

Ajax fans also sparked racuous scenes in Leicester Square ahead of the game, climbing scaffolding and letting off clouds of coloured smoke.

The Premier League side will travel to Holland for the second leg on May 8.