Arsenal Invincible Emmanuel Petit says Fabio Vieira isn't good enough for the team.
Vieira arrived in the summer from Porto and has battled for minutes in his first season with the Gunners.
Petit told Compare.bet: “I don't think Fabio Vieira has shown as of yet, that he is the right level to play for Arsenal.
“When he signed I thought to myself 'this guy looks very lightweight for the Premier League'. I don't think he's ready for the Premier League physically and mentally."
He then added: “You can also say that he's struggled not getting consistent game time and when you compare him to Emile Smith-Rowe, who I think has a future with Arsenal, he's not the same.
“Respectfully, I think it was perhaps a mistake signing Vieira."