"I was pleased with the reaction of the players, we were much better in the second half," Chelsea interim manager Rafael Benitez said after drawing 2-2 with Brentford.
"It's important to do well in every competition, the FA Cup is massive but we also need to finish in the top four."
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The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.
Mayor of Newham Sir Robin Wales criticised the International Olympic Committee on the fourth anniversary of the opening ceremony.