1:03 Brendan Rodgers says he is unaware of reports in the Australian media which indicate Tom Rogic has rejected a new deal. Brendan Rodgers says he is unaware of reports in the Australian media which indicate Tom Rogic has rejected a new deal.

Brendan Rodgers says he is unaware of reports in the Australian media which indicate Tom Rogic has rejected a new contract at Celtic.

The Australian international, signed by Neil Lennon in 2013 from Central Coast Mariners, has 15 months remaining on the three-year contract extension he signed in August 2016 but is understood to be now considering his options.

Rogic, who came off the bench in Celtic's 3-0 defeat to Zenit St Petersburg on Thursday, is reported to be unimpressed by the terms of a proposed new deal and his lack of game time.

Tom Rogic is reported to have rejected a new Celtic deal

When asked about the news which came from the Australian publication The World Game, Rodgers told Sky Sports: "I am not aware of that to be honest. We have just arrived back from Russia.

"I know Tom and his representatives have been speaking with the club for a little bit of time but that [the reports] are the first I have heard about that."

Rogic was an integral member of Rodgers' invincible treble-winning side last season but has just returned last weekend from a two-month absence through a knee injury.

Rodgers, whose Celtic side travel to Pittodrie to face Aberdeen on Sunday, live on Sky Sports Football, is determined to keep hold of the midfielder and has described Rogic, who is expected to feature at the World Cup in Russia this summer, as a "joy to work with".

0:50 Charlie Nicholas believes Aberdeen must 'go after' Celtic when the two clubs meet at Pittodrie on Sunday. Charlie Nicholas believes Aberdeen must 'go after' Celtic when the two clubs meet at Pittodrie on Sunday.

When asked about whether he wanted to keep hold of Rogic on a long-term basis, Rodgers said: "Definitely. Tom is a very important player for Celtic.

"He has been a joy to work with in my time here. He has been here for a considerable period of time but certainly in the 20 months I have been here he has been absolutely brilliant.

"Of course, at Celtic we want to keep our best players. It is not always easy because at times they will either want to move on or offers come in from clubs.

"Where we can we always want to keep our best players for as long as we possibly can and Tom is certainly that. He has been out for a long time injury wise but is just getting himself back and up to speed."

Rogic celebrates his late winner in the Scottish Cup final against Aberdeen last season

Rogic, who scored a dramatic last-minute winner for the Hoops in their Scottish Cup final victory against Aberdeen to secure the treble last season, has featured 29 times for the Scottish Premiership champions this term but almost half of those appearances have been off the bench.