Frank McAvennie is adamant Shane Duffy will prove to be a “great asset” to Celtic after the club confirmed the signing of the Brighton defender this morning.

The former Hoops and St Mirren striker, speaking exclusively to Football Insider correspondent Dylan Childs, claimed that the 28-year-old will be a great and much needed boost for manager Neil Lennon.

The club announced earlier today that the centre-half had joined on a season-long loan deal from Brighton.

Football Insider revealed yesterday that the Republic of Ireland international was to have a medical on Tuesday after the two clubs agreed on a £2.5million loan fee.

Celtic have more than doubled their initial £1million offer to secure Duffy‘s services and will pay the majority of the player’s £45,000-a-week wages.

He becomes their fourth summer signing after Vasilis Barkas, Albian Ajeti and David Turnbull.

Subscribe to Football Insider TV now

When asked by Football Insider what the new signing will bring to Neil Lennon’s side, McAvennie said:

“Jullien and Ajer are good players but you cannot stroll about. Teams are not giving them the time they had when they first came in. Teams are attacking them. Duffy is a boy that plays with his heart.

“A great centre-half and a throwback to when I played but he can play the modern game as well. I think he will be a great asset to Celtic and a great boost to the club and Lenny needs that.”

Speaking on his new club while on international duty, Duffy said: “I’m delighted, it’s something that I’ve always dreamed of doing and I’m just excited to get up there now and get going.

“Hopefully I can do my best for the club. I’m over the moon, it’s been a long time coming!”

In other Celtic news, Noel Whelan has told Football Insider that club have “made up their mind” on future of 25-year-old after update.