SportPolice ban on London semiAdrian Warner|Evening Standard14 April 2012Police have ruled out any all-London FA Cup semi-finals being played in the capital because of security reasons.With Millwall, Arsenal and Fulham involved in this weekend's quarter-finals, there is a good chance of two London teams facing a showdown in the last four.The only neutral London ground big enough for a semi-final would be the 42,450-capacity Stamford Bridge.But Standard Sport has learned that police are worried about crowd segregation and the semi-finals will be held at Villa Park and Old Trafford.London fans will face major travel problems getting to Birmingham or Manchester on 4 April because rail engineering works are planned on the line from Euston for most weekends in the next month.Fans from the capital have had huge hassles getting to semi-finals outside of London in the last two seasons.MORE ABOUTArsenalAston VillaFulhamMillwall FCStamford Bridge