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.
More top news
Thousands of people are staying in temporary shelters following the big earthquake in Indonesia's Aceh province.
Russia appears to have snubbed a Japanese attempt at puppy-love diplomacy by declining a gift of a dog for President Vladimir Putin.
The self-declared white supremacist's was recorded telling an FBI agent "I went to that church in Charleston and I did it."