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Chelsea tried to keep Willian to stay at the club for the next two seasons, but the Brazilian left the club as a free agent during the summer transfer window, to join Chelsea rivals Arsenal.
The 33-year-old started his Arsenal career on a bang, with a hat-trick of assists on his debut against Arsenal. Since then, his form has dropped, and he has been unable to impress.
However, Arsenal boss Mikel Arteta has now backed Willian to pick back form for the Gunners.
“I think he started really well with his first game against Fulham,” said Arteta ahead of their clash with Aston Villa.
“We’ve been changing the front three, he had an injury and he didn’t have any time to train, any pre-season – he was later than the others.
“I can see a development in the last two games. The understanding of things I ask them to do is probably different to what he’s used to, but he’s getting better and better. ‘We all know the quality he has and he’s a great option to have on the pitch.
“I think he’s a player that can make the difference. He’s got the ability to find that last action to open the door when everything is really tight, to score a goal, to create an assist.
“As well the personality and stamina he has on the pitch to manage the game we need to in certain moments and at Old Trafford I think he did that really well.”
So far, do you think Chelsea made the right decision to let Willian leave?