Ryan Giggs is the shock name on Celtic’s wanted list to replace the departing Ronny Deila.

The current Bhoys boss has confirmed he will leave the club at the end of the season, leaving the Scottish giants looking for a new manager.

It is believed Manchester United legend Giggs, currently Louis van Gaal’s assistant, is aware of Celtic’s interest.

Manchester United assistant manager Ryan Giggs is being considered to become the next Celtic manager

The Old Trafford legend has been tipped to eventually take over from Louis van Gaal at United

Matteo Darmian (centre) celebrates scoring his first goal for United in the 2-0 win over Crystal Palace

However, Sportsmail understands the 42-year-old has reservations about a move north of the border, even though he sees his long-term future as a manager and is said to be keen on taking a top job.

But the United coach is unconvinced a move to Scotland would represent the right career move as he looks to challenge himself.

The return of Rangers into the Scottish top flight should ensure a more competitive league, but Celtic are likely to dominate domestically again next season.

Current Hoops boss Ronny Deila has confirmed he will leave Parkhead at the end of the season

Deila's fate was sealed after the Scottish Cup semi-final defeat by arch rivals Rangers last weekend

Mauricio Pochettino (left) and Jose Mourinho have both been linked with taking over at Manchester United

In addition, Giggs wants clarification on his long-term role at Old Trafford before making a decision on his future.

Giggs has been earmarked by Old Trafford chiefs to become manager one day, possibly as Van Gaal’s successor. Likewise, United remain keen on keeping Giggs at the club on a long-term basis, but are aware of his desire to become a manager.

But his pathway to the hotseat is now unclear with Jose Mourinho and Mauricio Pochettino both touted as candidates to take over from Van Gaal.

Former Bhoys manager Neil Lennon (left) and ex-United boss David Moyes are also in the running

Celtic, it is understood, are aware of Giggs’s hesitancy and are assessing other options. Neil Lennon could be considered for a return to Parkhead after leaving Bolton in March.

Northern Irishman Lennon, who won 16 trophies as a player and manager with Celtic, is keen on a return.

‘I would definitely be interested,’ he said. ‘I was associated with the club for 15 years, I missed it when I left as a player and there are aspects that you miss even now at 44 years of age.’

David Moyes has installed as the favourite – but the former Everton and Manchester United manager was non-committal when asked about the impending vacancy.

Moyes told Sky Sports: “I’ve been in that position [favourite for a job], there’ s been a few jobs come up that I’ve not taken on, where the bookies have got it wrong.

“Celtic’s a brilliant FC, great FC, unbelievable support and fan base, one of the biggest in the world but I’m going to wait until the summertime and make my decision in the summertime so there’s no hurry.