Former Arsenal defender Kieran Gibbs believes his old club is missing Granit Xhaka.
The Switzerland midfielder left in the summer for Bayer Leverkusen.
Gibbs said on ESPN: "He [Xhaka] probably had his best season last season, let's be honest, after a long spell at the club.
"I don't think he was underrated last season. I just think he was appreciated more for what he was doing.
"He calmed down his antics with his fouls and stuff. He just cleaned up a lot of his game. I felt he was a really good link.
"He gave that balance, especially when [Oleksandr] Zinchenko came in last season and started to play inverted, it gave Xhaka a bit of a different role.
"I do think it is having a bigger effect on the team than most people think."
