Local government is unhappy with the prospect of Chelsea relocating to Twickenham.
The RFU has confirmed the Blues have made an enquiry about using the 82,000-capacity home of English rugby should they opt to redevelop Stamford Bridge.
Local MP Vince Cable, a Liberal Democrat, tweeted: "I have written today to RFU about Twickenham Stadium and possible use for a year by Chelsea FC. V serious concerns and need for facts ASAP."
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