Newcastle United keeper Fraser Forster joined Norwich on a one month loan on 28th August 2009 following injuries to Ben Alnwick and an international call-up for Declan Rudd

Forster came through the ranks at Newcastle and was third choice goalkeeper in the 2007–08 season while Tim Krul was on loan at Falkirk, and played as a regular in the reserves. He also deputised for much of the season as Shay Given suffered from injury and Steve Harper was forced to take his place.

With Krul back for the 2008–09 season and Given back to full fitness, Forster was loaned out to Stockport County on 2nd October 2008, to deputise for regular goalkeeper Owain Fôn Williams while he was away on international duty with Wales. He made 6 appearances for Stockport.

On 31st July 2009, he signed a one month loan deal with Bristol Rovers and made 4 appearances for them

Forster made his debut, keeping a clean sheet, in the 2-0 win at Harlepool on 29th August 2009. His loan was then extended until the end of December 2009, and then until the end of the 2009/10 season

Reports in the tabloid press in December 2009 suggested that Forster's form had attracted the attention of both Arsenal and Spirs.

Forster made 42 appearances for City in 2009/10, despite two red cards at Gillingham and Tranmere, and was voted second in the Player of the Season awards. It is hoped that he will return on loan for 2010/11 although Burnley were also reported to be interested in him.

Forster joined Celtic on loan for the 2010/11 season on 24th August 2010. Celtic manager Neil Lennon had been looking for a keeper to challenge Lukasz Zaluska since Artur Boruc signed for Fiorentina. Lennon said "He's a big boy, he's come highly recommended, I've watched him myself a couple of times. His age, 22, is the only thing going against him because otherwise he has all the qualities you look for in a goalkeeper. He's got a massive presence and he's come highly recommended from people in the game whose opinion I trust. We've needed competition in that area so he'll add to that."

Forster made his Celtic debut in a 1-0 win away to Motherwell on 29th August 2010. In his season with Celtic, they finished second to Rangers in the League but won the Scottish Cup with a 3-0 win over Stuart McCall's Motherwell. He kept 24 clean sheets in 44 games for Celtic.

In June 2011, Celtic had a £1.5million bid for Forster rejected by Newcastle. It was also speculated that he was to be sold in part-exchange to Birmingham for Ben Foster.

On 17th August 2011, Forster returned to Celtic on another season long loan with the possibility of a permanent deal at the end of it.