The latest suggestion is Celtic boss Ange Postecoglou is believed to be eyeing a new centre-forward addition in the January window, with the 57-year-old keen to strengthen his attacking options heading into the second half of the campaign.

One man who could well potentially prove a solution for the title-winning coach is Scotland international Ross Stewart, with the 26-year-old - who is also attracting interest from Old Firm foes Rangers - facing an uncertain future with current side Sunderland.

The suggestion is that the Black Cats could well be open to selling the 6-foot-2 marksman in the winter, with the former Ross County man having yet to commit his future to the club with just six months remaining on his existing deal.

The Parkhead giants are said to be 'waiting in the wings' should the striker be up for grabs in the New Year, with the Irvine-born ace no doubt set to be an attractive option for Postecoglou and co due to his goalscoring heroics of late.

The one-time St Mirren hitman has scored 34 goals and registered eight assists in just 72 games for the Championship side to date, having notably netted 26 goals in England's third tier last season to help drag his side to promotion.

Despite injury woes having hampered his campaign this time around, the £3m-rated talent still boasts a haul of five goals and three assists in just seven league outings, having been something "revelation" in the words of teammate, Alex Pritchard.

A player who has "got everything", in the words of Pritchard, due to his hold-up play and impressive work ethic - showcased by the fact he ranks in the top 9% for tackles made among those in his position, as per FBref - Stewart would no doubt offer a quality striking alternative for the Glasgow side.

The hope will be that the Scotsman can emulate the impact of another man to have arrived at Celtic Park from south of the border in the form of Kris Commons, with the now-retired ace having gone on to blossom in a green and white jersey.

Like Stewart, the playmaker was also in the final months of his contract at EFL outfit Derby County when he was snapped up by Neil Lennon for a bargain fee of just £300k in January 2011.

The Mansfield-born ace - who made 12 appearances for Scotland at international level - was an instant hit at Paradise after netting a delightful lob on debut against Aberdeen, before finishing that 2010/11 season with 11 goals and four assists in just 14 Scottish Premiership outings.

The left-footed wizard would go on to be a mainstay of the side over the next few years in his creative berth, racking up 89 goals and 72 assists in 227 games for the club in all competitions, notably winning the SPFA Player of the Year award at the end of a stellar 2013/14 season in which he recorded 45 goal involvements in just 48 games across all fronts.

That huge success story will no doubt be one that Stewart could well potentially emulate, with Commons showcasing the benefits of securing a mid-season deal after exploiting a player's contract uncertainty.

It could well prove to be yet another masterstroke for Celtic if they can get the Stadium of Light star through the door.