Arsenal boss Arsene Wenger is furious with fans jeering Andrey Arshavin.
The Russian skipper was linked with moves back home to Anzhi Makhachkala or Zenit St Petersburg this week.
But Wenger said: "I understand everybody's frustrations, but there is a difference between frustration and lack of respect.
"Things can change quickly - villain today, hero tomorrow. And when you are a good football player like he is you can always come back."