John Hartson believes Leigh Griffiths' Celtic career is over.

Griff, 31, joined Dundee on a season-long loan deal this afternoon on deadline day.

His move came as no surprise as, despite signing a contract extension earlier this summer, the Scotland cap has barely kicked a ball under Ange Postecoglou.

It means the striker's Hoops career hangs in the balance but club legend Hartson took to social media to suggest he is finished at Parkhead.

The Welshman wrote: "Leigh Griffiths has joined Dundee on a 1 year loan deal.. we have seen the last of Leigh not sure he recaptured the form he showed whilst scoring for fun a few seasons ago.. over 100 goals is no mean feat .. he will continue scoring for Dundee.

"Good luck Griff."

Griffiths has notched 123 goals in 261 games for Celts including off the bench.