Millwall Football Club refused to comment on the issue, and assistant manager Joe Gallen - who was standing in for Lions manager Kenny Jackett, who missed the game with flu - also chose not to discuss the matter.
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A vote to remain in the EU will see Brussels exert more power over the NHS, according to the Cabinet minister.
Tuesday: A cloudy, cool and dull day with outbreaks of heavy rain becoming lighter and patchier.
The former England cricketer fears England will become "cluttered" unless it leaves the EU.