Police are investigating claims that West Ham supporters threw coins at Frank Lampard following his 200th goal for Chelsea at the weekend.
In a statement, West Ham said:
"West Ham United will be working with Chelsea to investigate the reports of missile throwing during Sunday's game at Stamford Bridge.
Any individual found to have acted in an inappropriate way will have to face the consequences of their actions, including the possibility of a ban from attending future matches."
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On Sunday night in Stratford he'll try and break what's known as the Hour Record - racing laps of the velodrome for 60 minutes.
Disruption was expected to last well into the rush hour, threatening a repeat of chaotic scenes at London Bridge earlier this year.
The first written record of The Elephant and Castle pub was made in March 1765, exactly 250 years ago.