Wenger backs under-fire Gunners
Mertesacker has been under fire since Sunday’s 2-2 Premier League draw with Liverpool for ducking as Martin Skrtel nodded home the equaliser deep into injury-time at Anfield.
Jamie Redknapp and Ian Wright are among those to have condemned Mertesacker, but Wenger has absolved the former Germany centre-back of blame and insists his form does not justify the scrutiny he has faced.