Josip Vukovic is being followed by Steven Gerrard's Rangers, according to Foot Mercato.
And the French publication claims the Ibrox outfit 'could take action' this summer.
But what should those of a Rangers persuasion know about Vukovic?
Here are five facts to get you up to speed...
What sort of player is Vukovic?
A 6ft tall, two-footed defensive midfielder, currently on the books of Portugal's Maritimo, whom he joined last summer. According to WhoScored.com, his weaknesses include: aerial duels, passing, tackling and discipline, although he's said to be good at interceptions.
Where's he from?
Croatia, for whom he won caps at under-19 level. Two of Vukovic's fellow countrymen, Nikola Katic and Borna Barisic, are already on the books at Rangers.
Where's he been before?
Vukovic began his career with Croatia's Dugopolje eight years ago and later appeared for Hajduk Split, Istra 1961 and Split in his home country. He also had spells in Bosnian and Croatian football (with Vitez and Olimpik Donetsk, respectively) before heading to Portugal.
Are Rangers the only ones keen?
Not according to Foot Mercato, who claim the player's displays have also attracted the attention of Benfica, Sporting and Villarreall - Rangers' Europa League opponents this season.
How easy would it be to get him?
Vukovic still has two-and-a-half years left on his Maritimo contract, putting the Liga NOS outfit in a strong negotiating position. That said, relegation remains a possibility for the side managed by the former Portugal midfielder, Petit - who despite occupying 13th place are only two points above the drop zone - and going down would surely weaken their chances of keeping Vukovic. The Croatian is valued at £360,000 by Transfermarkt.co.uk.