Leigh Griffiths has revealed that he is close to penning a long-term deal to make him a Celtic player for life – and the striker has vowed to fight for his place at the club following the permanent arrival of Odsonne Edouard.

Griffiths is under contract until 2021 but could be the next player to be handed a bigger contract by the Parkhead club.

Tom Rogic and Kieran Tierney have both penned long-term contracts of late while the Parkhead side shelled out a club record fee last week to secure the signing of Edouard on a four-year deal from PSG.

“We are inching further forward on that,” said the striker when asked about his talks with the club. “It’s getting closer and there’s not far to go. We are about 85 per cent done now. There’s just a couple of tweaks needed and then it will be done.

“I see my best years at Celtic. I’d like to get to 100 goals. If I don’t get to that mark next season then I may as well quit football. I need two goals but it feels like I’ve not had the chance to get there but this season that lies ahead I’m sure I will get there.

“I’ve still got two and a bit years to go on my current deal. But the fact that they are even talking about a new contract gives me joy and delight that I am going to be here for basically the rest of my career. When it does get done and signed I will be delighted.”

Meanwhile, Griffiths has insisted that Celtic will be ready as they prepare to embark on a gruelling Champions League qualification campaign.

Brendan Rodgers’ side face a trip to Armenia to play Alashkert for the first leg of their first round qualifier with the return in Glasgow a week later. Should Celtic be successful in negotiating that round they will then potentially face Rosenborg – assuming the Norwegians beat .

With searing temperatures and a 5,000 mile round trip awaiting for the opening tie against the Armenians, it will be a daunting start to the campaign.

“We will be prepared to go over there and do the job,” said Griffiths. “If we go through that one then we know that Rosenborg – if they get through – will be tough.

“It seems like we always get thrown a difficult tie, whether it be the qualifying rounds or the group stage. We are always being prepared and this year is no different.

“We will just need to adapt to the conditions. It is a two-legged affair so the first-leg is important but we know that we are coming back to Celtic Park and the crowd behind us always gives us a boost.

“It is difficult getting through three ties let alone four. But as players we just need to take it on the chin and get on with the job in hand.

“In Scotland, we aren’t used to the intense heat but it is just about the performance on the night and sometimes it isn’t good enough. Thankfully 9 times out of 10 we get we get them back at Celtic Park and get the job done so over the two-legged affair you want to get through.”

The one advantage Celtic have is that they have so much experience of the mental and physical requirements of getting through this process.

“We have been to Kazakhstan, we have been to Israel and it is difficult conditions,” said Griffiths. “But as players we just need to put in performances and get the job done. We’d like to get a decent result in the first-leg but we know with the crowd behind us here then we have a chance of getting the job done.”