Arsenal title winner Paul Merson believes Willian is struggling.
Willian 'looks lost' at Arsenal and nowhere near his Blues form, according to Merson.
The Brazilian winger, 32, arrived at the Emirates ahead of this season on a three-year deal that Chelsea brass refused to offer him.
Merse told Sky Sports: “Willian was unbelievable at Chelsea last year.
“For me, he was probably one of the best players. He was phenomenal – an outstanding talent.
'He has gone to Arsenal and he looks lost. They have got to get him performing."
