Celtic have signed Hibernian midfielder Scott Allan on a four-year deal.

It brings to an end the long-running saga surrounding the 23-year-old's future after Rangers were also heavily linked.

Allan has now put pen to paper at Celtic Park, where he will be officially unveiled prior to Saturday's home clash against Inverness Caledonian Thistle.

Speaking to the club's official website, the former West Bromwich Albion man said: "I am absolutely delighted to sign for Celtic, such a fantastic club. It is such an honour to be given this opportunity and I can't wait to get started and play my part in bringing success to Celtic and our supporters.

"There are so many exciting challenges ahead for us now in Scotland and in Europe and I am looking forward to being part of all that lies ahead. I know a number of players well at the club already, so it will be great to team up with these lads again as well as all my other new team-mates, and I know we will work hard together to bring more good times to our fans.

"I know the high-quality of players at the club and I know it will be a big personal challenge for me but it's one I'm ready for and one I am relishing. I would like to thank the many fans who have already welcomed me to the club. I really appreciate this support."

Rangers are thought to have had three bids knocked back by Hibernian for Allan, before Celtic swooped to land the Scotsman for an undisclosed fee.