West Ham United and Millwall have been charged by the English Football Association (FA) following serious crowd trouble at last month's League Cup match.
"West Ham United FC has been charged on four counts of failing to control their supporters whilst Millwall FC has been charged on three counts," an FA statement read.
Premier League side West Ham's 3-1 extra-time win over League One (third division) club and London rivals Millwall on August 25 was marred by crowd violence before kick-off and during the match at Upton Park.
Supporters invaded the pitch twice after West Ham scored and a 44-year-old man was taken to hospital with a stab wound.
Both clubs now have 14 days to respond to the charges.