COPS are close to catching an online troll who racially abused footie ace Bukayo Saka, sources say.

X/Twitter took four weeks to finally suspend the culprit’s account on Friday.

Cops are investigating a photoshopped image and comment about the Arsenal and England winger.

The Met has brought in specialist UK Football Policing Unit detectives to trace the racist and sources revealed they are “closing in”.

Anti-racism campaigners had blasted the social media giant for still allowing the message to be displayed after we first reported it last month.

Sunder Katwala, director of equality think tank British Future, said: “That it took a month to remove such blatant racism — even when reported in The Sun on Sunday — shows just how hit and miss the current systems are.”

The vile taunt came after Saka, 22, had appealed for a late penalty in Arsenal’s Champions League defeat to Bayern Munich — with some accusing him of trying to con the ref.

The troll continued to spew race hate towards Saka and other black players for more than a month.

X/Twitter was approached for comment.