Players and fans were at risk of contracting the bug at the All England Lawn Tennis Club.

One piece of kitchen equipment had an E.coli reading of 2,414, far exceeding the allowed maximum of 50. Another in the “main production kitchen” read 1,369.

A health inspector from Merton London Borough Council wrote: “Unfortunately I witnessed some very poor practices.

“The repercussions of an E.coli outbreak at Wimbledon Tennis would be disastrous. The failures found could very well have led to an outbreak.

“Mistakes like these must never be repeated.”

The report, obtained by the Daily Star under the Freedom of Information Act, was into an inspection carried out last year when Andy Murray, 27, won the men’s singles title.