Millwall football manager Kenny Jackett said he had not seen incidents of crowd trouble at today's FA Cup semi-final, but added:
If there was crowd trouble ... It will hold us back if that happens repeatedly.
We have worked very hard, the chief executive and chairman, to do everything we possibly can to be trouble-free. We have had high-profile games that have gone very well. We have done everything we possibly can.
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MPs approved the EU (Withdrawal) Bill by 324 votes to 295, at a third reading, with the Government seeing off some proposed amendments.