I found this on the internet.
This was probably when tobacco sponsorship was allowed at UK sporting events.
I looked at their team colours of today. It would seem to be fair game to allow Macdonalds, a burger and chip/fries vendor, to advertise their healthy ? wares on the team kit these days.
https://www.managementtoday.co.uk/uk-snuff-feels-pinch-mcchrystals-leicester/article/409315