Luca Pellegrini and Charalampos Lykogiannis have been rotated at left-back this season, but the futures of both are in doubt.
Cagliari will struggle to arrange another loan for Pellegrini and Lykogiannis, though improved, is not ready to be the starting left-back.
That has taken Cagliari to Brazil with six-cap Uruguay left-back Vina ’emerging overwhelmingly’ as the leading target.
The Isolani already have three Uruguayans – Christian Oliva, Nahitan Nández and Gastón Pereiro – in their first team squad.
And Vina could soon follow in their footsteps if Cagliari firm up their interest with a bid.