Arsenal boss Arsene Wenger has refused to comment on Robin van Persie's frustrations at Manchester United. The former Arsenal star left in 2012 but has been linked with a move back to the Emirates. He was outspoken in the aftermath of United's Champions League defeat at Olympiacos.

But Wenger declined to discuss RVP's comments.

He said: "I didn't hear it. I wouldn't like to comment on comments I haven't heard."

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