ANGE POSTECOGLOU has revealed that Greg Taylor could be missing until the turn of the year due to an operation on his shoulder.

The Scotland international has been missing since last month's 3-0 win over Ross County where he sustained the injury on his shoulder.

Speaking after Celtic's win over St Johnstone, Postecoglou said: “Greg’s had an operation on his shoulder, it’s about four weeks since he started rehab so he’s still a good couple of months away.

“It’s a contact thing where we have to be careful.”

Meanwhile, Georgios Giakoumakis turned his sights on Hibernian after getting his Celtic career up and running with his first goal in Saturday’s 2-0 home win against St Johnstone.

It was a first start for the Greece striker since signing from Dutch side VVV-Venlo in August for a reported fee of £2.5million and he came up against a stuffy Saints side.

In the 35th minute, and with Celtic huffing and puffing against the Perth side, Giakoumakis was on hand to convert an Anthony Ralston cross before a late penalty from full-back Josip Juranovic sealed three well-deserved cinch Premiership points.

It was a fourth successive win for Ange Postecoglou’s side, who now get ready to face Hibs at Easter Road on Wednesday night, with Giakoumakis acknowledging that there is a long way to go in the league campaign.

He told Celtic TV: “We are focused on every game in a different way.

“We have to prepare again. We have to be happy until Sunday and then we have to think about the next game.

“It is a marathon and we have to keep going.

“St Johnstone was a tough team to play against, a team focused on the defence and played with three central defenders, so it was more difficult than usual but finally we scored.

“It was something that I was looking forward to, scoring at this stadium in front of these people, it was amazing. It was exactly as I imagined it, so I am really happy.”