Former Celtic coach Damien Duff reckons Callum McGregor has the ability and footballing brain to play for BARCELONA.

The Irishman worked with McGregor during his 18 months at Parkhead and believes he is a 'world class' talent. Duff played with some top players during his career at Chelsea and Newcastle, so understands what it takes. And he insists McGregor has all the attributes.

He also went through the Hoops changing room and name checked a host of stars whom he believes are the main men. "[Callum] McGregor is world-class. I tell him this all the time," he told Si Ferry's Open Goal podcast. "He could play in Barcelona. Taking information, the king of simplicity and making the right decisions. World-class.

"[Jeremie] Frimpong got player of the year. Amazing character and impact for a young boy. Kris Ajer is a Rolls-Royce. I love him to pieces. Broony has been world-class for years and Jimmy [James Forrest] on the right, his stats are absolutely ridiculous. On the far side Mikey [Johnston]. If he stays fit - my god what a winger you have got there.

"Up top Odsonne [Edouard] - what a class act. And even the Griffalo [Leigh Griffiths] - he probably doesn't look the fittest at times but he's possibly the best finisher I have ever seen. That slap. Every coach is side-foot, side-foot, side-foot finish but he just slaps it with his laces and it's absolutely ridiculous.

"There is a ridiculous amount of quality in the squad."