Manchester City fullback Bacary Sagna understands Arsenal fans' frustration with their transfer policy. Sagna left Arsenal for City last summer.
The 31-year-old, quoted in L'Equipe, said: "It was a good time for me to see something new, to boost my career.
"I have made much progress at Arsenal alongside my teammates and Arsene Wenger. I thought long and hard and it was a difficult choice, mentally.
"At City, the squad is much bigger. But that's what I was looking for, I needed to challenge myself.
"Arsenal is and will remain a quality team. I understand the fans are frustrated when they see the transfers at other clubs."
