Scott Allan has revealed that he swapped Hibernian for Celtic in the hope of furthering his career.
The 23-year-old midfielder handed in a transfer request at Easter Road after Rangers had three bids turned down.
Allan acknowledges that he will now come under fire from supporters of boyhood club Rangers, but he says it was "an easy decision" to make in the end.
"I wanted to progress my career and this was the right move for me," he told reporters. "When I heard from my agent that Celtic were interested, in football terms it was an easy decision to step up a league and European football - and to develop as a player.
"I was just concentrating on my game and, if something came up, I'd need to make a decision. Luckily for me, it was Celtic and that was the decision I made.
"I just made it on football terms, I wasn't really bothered what came with it. I know I'll get a lot of stick off some people, but it's about playing football and developing and this is the right place for me."
Allan is in contention to be involved in Celtic's Champions League playoff first-leg tie against Malmo later this week.