Freddie Ljungberg says he still has plenty to offer and hopes he is given an opportunity somewhere to redeem himself for his Celtic failure.
He says his stint at Celtic Park was frustrating and is annoyed he was not able to show the fans what he was capable of.
"People might say I've been a failure at Celtic and I would agree with that if I had played six games in a row and been absolutely s*** in each game," he told SunSport.
"But that's not happened. I haven't been able to show people what I can do.
"I haven't been able to play and that's the frustrating thing for me because I know how well I can play.
"If you could see me in training you'd see I can still play pretty well."
Ljungberg did have some injury worries but insists that is not the main reason he did not play much football for the green and whites.
"I don't know why I didn't play much football, that's something only Neil (Lennon) or Johan Mjallby can answer," he added.
"Every time we finished training sessions they were really complimentary, telling me I was doing amazing.
"I worked as hard as I could. I had some injury problems to begin with, but was fit for the last three months.
"Of course, it would have been nice to play more in front of the amazing Celtic fans, but this is how it is.
"It was frustrating because I have never been in that situation before in my life.
"As a kid I was the captain and as I got older I played all the time. My situation at Celtic was weird to me, but I tried to be a good professional and train hard.
"I had to, how do you put it. . . keep my head down and not throw my toys out of the pram.
"Neil and Johan wanted me to come here and lend my experience to the team - help calm people down on and off the pitch - and even though I didn't play I think I did that."