The Gunners triumphed over their London rivals 2-1 thanks to goals from Alexandre Lacazette and Eddie Nketiah, either side of an equaliser from Michail Antonio.
Willian started once again for Arsenal, but having contributed three assists in his first outing, the Brazilian struggled to stamp his authority on the match this time out.
His misery was compounded by a series of unimpressive corners – leading Chelsea fans to mock his crossing ability from set pieces.
Taking to Twitter, one wrote: “Willian is back to being willian.”
“How has Willian got himself on corners at Arsenal as well?” a second asked. “He’s so bad at them. Must be in his contract.”
While a third put: “Willian back to his normal way of taking corner kicks.”
“Lmao Willian just proved everything he’s known for in that corner sequence,” a fourth mocked.
Arsenal manger Mikel Arteta admitted that his side dwindled somewhat during the second half, and claimed he had to give them a lift to pick up all three points in the end.
Mikel Arteta’s Gunners have been starved of title glory for a while now – but things could be changing as a new-look Arsenal side plot a course to success.
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New signings Willian and Gabriel Magalhaes both hit the ground running against Fulham but Mikel Arteta is still on the lookout for new signings. Lyon midfielder Houssem Aouar and Brentford keeper David Raya are two of the names on their radar.
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“I had a sense after about 55 or 65 minutes that we were dropping,” Arteta said.
“I could see the team were a little bit giving up because it was difficult, they were suffering and they were being a threat in two or three moments.
“I tried to lift them up and suddenly they clicked. I saw a different team in the last 20 minutes, with more belief, much better focus and determination in what we were trying to do.
“At the end we won the game. We’re going to have games like that. With the amount of games we have to play in this calendar year, it’s going to happen. The most important thing is to find a way to win.
“I think it was two things but at the end of the day they have to go and execute it. I believe that we finished the game more strongly.”