Fraser Forster has warned current Celtic No.1 keeper Lukasz Zaluska that he has not moved to Parkhead just to sit on the bench. The 22-year-old stopper has made the switch to the Hoops on a season-long loan from Newcastle.
"I've said all along, even when I was at Norwich, that I wanted to be playing football. I don't like sitting on the bench," he said.
"I'm here to provide competition and I aim to be number one. I'm going to work as hard as I can and hopefully prove to the gaffer I should be playing.
"I've got to prove week in, week out, if I'm playing, that I'm worthy of the shirt.
"It was a very different experience last year (at Norwich) where the pressure is on and everyone wants to beat you.
"Obviously here is a much bigger scale but it's all about winning games and it's fantastic to get the chance to come to a big club where you are expected to win every week."
Forster admits he spoke to Paul Lambert before making the trip up to Glasgow, but says he did not need much convincing to decide on the transfer.
"Paul Lambert told me what a big club it was and I relish the chance to come and perform," he added.
"He didn't have to sell it to me. He was a fantastic player here and did a lot for me last year, and I can't thank him enough for that.
"He told me I should get myself up here and sign the papers as quickly as possible."