What is the name of the Chant/Song in this Video of Anthony Joshua v Dillian Whyte 2?

Hi Everyone,

For almost every single Boxing match I watch that is hosted in England, I hear the spectators sing or chant a series of words - but I can never make out what they are saying.

I have included a link to the second fight between Anthony Joshua & Dillian Whyte where you can hear this chant quite distinctly from the 1:23 to the 1:38 mark.

Here is the Link:

https://www.youtube.com/watch?v=iHeViRO3P5U

Can you tell me what are the spectators chanting/singing?

Thanks