Rogic, 22, joined Celtic from Central Coast Mariners back in his native Australia in January 2013, but after just 15 appearances in 12 months, he headed back down under, joining Melbourne Victory for the second part of the 2013-14 season.
Injuries have plagued the midfielder during his time in Glasgow, but this season he has become a key player for Ronny Deila's men, finally shaking off those fitness concerns.
With six goals in 26 games from midfield, Rogic has been one of Celtic's standout players this season, and with 18 months left on his contract, The Scottish Sun reported last week that the Bhoys are looking to extend his contract beyond 2017.
However, they may now risk losing Rogic, as the Yorkshire Evening Post suggest that Leeds manager Steve Evans has made the midfielder a 'major target' during this month's transfer window.
The Whites not only extended Liam Bridcutt's loan from Sunderland until the end of the season, but have also added Mustapha Carayol as well as twins Jack and Paul McKay to their squad this month - and Evans is still on the lookout for more new faces.
It's stated that Leeds value Rogic at around £1m and see him as a natural No. 10, with a bid in that region is seemingly on the verge of being submitted - giving Celtic a major decision to make over the Australian international's future at Celtic Park.