This archive report was first published on 23 December 2019.
Chelsea's 2-0 Premier League win at Tottenham on Sunday was marred by alleged racist comments from the crowd, the latest in a string of recent incidents.
Referee Anthony Taylor halted play during the second half when Antonio Rudiger complained of hearing monkey noises from spectators.
Chelsea manager Frank Lampard said the problem needed 'to be dealt with strongly', while Tottenham promised 'a thorough investigation'.
UEFA chief Aleksander Ceferin earlier this month pledged European football's governing body was working to tackle the rising problem of racism in football.
However, Ceferin accused British Prime Minister Boris Johnson of fuelling the problem, saying 'when a politician that calls women with burqas post boxes or mailboxes then says publicly that he condemns you UEFA (for not tackling racism) -- do you reply to that? Do you believe it's honest? Come on.'
Former Manchester United player Gary Neville also accused top UK politicians of fuelling racism, saying 'if it's accepted in the highest office in the country, we're not talking at a micro-level.'
The ugly scenes overshadowed the Willian double that gave Lampard a memorable triumph at the expense of his former Chelsea manager Jose Mourinho.