Clashes between rival supporters marred West Ham's EFL Cup fourth round win over Chelsea at London Stadium on Wednesday night.
Skirmishes broke out towards the end of the Hammers' impressive 2-1 fourth-round win as police and stewards battled to maintain segregation behind the goal being defended by West Ham.
This derby was billed as the biggest footballing test for the London Stadium so far, on a night when basketball and track cycling competitions were also taking place on the former Olympic Park.
The capacity is capped at 57,000 and 45,957 were in attendance, along with a heavy police presence.
Chelsea sold out their allocation of 5,182 tickets and, with the Hammers 2-0 up, trouble broke out.
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Can't see the live blog? Click here to access our desktop site.Slaven Bilic: "I don't want [my players] to be calm, no, no. I want them to be focused and up for it, but at the same time not to do anything stupid.
"Before these games you don't need a special motivation, as it is Chelsea. You can calm them a little bit down, but you want them to be in a state that they can't wait for the game to start."
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Antonio Conte on his three-man defence: "The central defenders on the right and the left must be very fast and aggressive.
"The players that play in the middle of the three defenders must be more tactical, must reflect more and find the right position, and also call the line up and down.
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"In these last three games we did very well. It’s normal when you play with the same players. They take confidence in the role to play together.
"It’s important also for example in this game, the cup, to find a new solution. If you have during the season an injury, then it’s important to have a good solution ready."
#whufc v #cfc Teamsheet....JT returns. Chalobah makes first start for Chelsea http://pbs.twimg.com/media/CvtkKUGXYAAteYl.jpg
3 – West Ham have lost their last three League Cup games against fellow PL sides (Leicester in 15-16 and twice v Man City in 13-14). Ironed.
Plenty of police in attendance for tonight's clash.
As for Chelsea, Antonio Conte rings the changes with John Terry returning in defence. Asmir Begovic takes over from Thibaut Courtois in goal, while Nathaniel Chalobah, Ola Aina and Michy Batshuayi are handed chances to impress.
So that's two changes for West Ham, with Darren Randolph and Aaron Cresswell in for Adrian and Simone Zaza respectively. Not exactly a ringing endorsement of Zaza's ability up front when Slaven Bilic decides to play Michail Antonio as the lone striker instead of the Italian.
TEAM NEWS!2️⃣️ changes➡️ @RandzOfficial & @Aaron_Cresswell⬅️ Adrian& Zaza#COYI #WHUCHE http://pbs.twimg.com/media/Cvti6b-WYAAappD.jpg
chelsea to beat west ham 3-0, with goals from willian, batshuayi and hazard
Bilic craves West Ham passion vs Chelsea - 'I don't want calm players'Evening StandardWest Ham are hoping for a calm night off the pitch when they host rivals Chelsea - but Slaven Bilic will not tell his players to cool it.
Chelsea call on West Ham and police to 'deliver a safe event'Evening StandardChelsea have called on West Ham and the police to "deliver a safe event" when Antonio Conte's side travel to the London Stadium for tonight's EFL Cup fourth round clash.
