Safe standing at Premier League grounds draws nearer as Manchester United ask fans their opinions on no seating areas
Red Devils ready to follow lead taken by Celtic - and other Premier League clubs are showing plenty of interest, too

MANCHESTER UNITED are open to the prospect of safe-standing rail seating at Old Trafford.
United have canvassed thousands of season ticket holders on the subject.
Scottish Premiership champions Celtic have successfully introduced rail seating at Celtic Park and there is a growing clamour among English fans to introduce the system, popularised in Germany, south of the border.
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Said Jon Darch, who runs the Safe Standing Roadshow: "I am sure that the level of interest will be huge.
"I look forward both to hearing the results and to seeing other Premier League clubs follow suit and ask their fans if they would also like to be formally allowed to stand at games in dedicated areas of rail seating, specifically designed for safe standing."
United have changed things around at Old Trafford in recent years.
For instance in 2013 a singing section was introduced for the visit of Real Sociedad in the Champions League group stage.
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However, the section - originally placed in the south-east section usually reserved for away supporters - has moved to the J Stand and the concept has run out of momentum.
Supporters' group Stretford End Flags was recently ridiculed for suggesting megaphones be introduced to improve the singing section.
The 3103 block in the second tier of the Stretford End is usually the most raucous section of United's home support but the likelihood is rail seating would be implemented in the first tier for safety reasons.
Elsewhere, it seems the majority of Premier League clubs like the idea.
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Tottenham, Crystal Palace, Sunderland, Swansea, Burnley, Hull and Watford are all actively pushing for safe standing, and it is commonly known that many others think it is time the league’s chief executive, Richard Scudamore, began exploratory talks with the government.