Dave Kitson says he made a mistake by joining Stoke. The striker, 29, moved to Stoke from Reading for a £5.5m fee but has returned to Reading on loan without a goal in his 18 appearances.
He said: 'What I needed was a club where I felt wanted, which is what I already had, and a family which was happy, which I already had. I threw all of that away for what I thought was going to be a new challenge.
'It was the wrong decision. I never got the chance to show what I can do. You'd have to ask Tony Pulis why that was.'
Nottingham Forest have signed Spurs defender Chris Gunter on loan until the end of the season.
Gunter's Wales colleague Jack Collison, of West Ham, has been ruled out for seven weeks with a dislocated kneecap.
Striker Matt Jansen, 31, has joined Blue Square Premier side Wrexham in a bid to revive his career.