Lica, Damien Perquis and Vladimir Stojkovic all told they can leave Nottingham Forest by Mark Warburton.
Pedro Caixinha is leading a Portuguese revolution at Ibrox, could Lica head to Glasgow?
The Portuguese winger has been outcasted at Nottingham Forest.
Estoril keen on bringing back Lica on loan from Nottingham Forest.
Forest loaned the former FC Porto man to Portuguese side Estoril in the January transfer window.
The Portugal international has had a torrid season at the City Ground.
The Reds have several promising youngsters out on loan at present, with varying degrees of success.
The Portuguese international struggled to make an impact at the City Ground.
Nottingham Forest failed to win against Birmingham City in the Championship at the weekend.
The Nottingham Forest faithful were not pleased with the selection of Lica.