Nottingham boxer, Carl Froch, will face fellow Englishman, George Groves, in Manchester on November 23.
The highly anticipated fight will see ‘the Cobra’ put his WBA and IBF super-middleweight world titles on the line against unbeaten Londoner, Groves, who is the mandatory challenger for the IBF belt.
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He demanded the money after placing a carrier bag containing what appeared to be a heavy object on the counter.
Closures will be in place on the Aston Expressway, Park Circus and Salford Circus. There will be some full weekend closures and diversions.
West Midlands Police have said specially trained police negotiators are speaking with the woman to try and talk her down to safety.