Raphael Martinho scores against Inter Milan
Martinho, 28, plays for Italian Serie B side Carpi, who were relegated from Serie A last season after finishing in 18th place.
Raphael Martinho tackles Paul Pogba
Tuttomercatoweb report that Martinho is highly admired by Leeds, although there is also interest from Italian sides.
Leeds have lacked wingers over the past couple of seasons, but recent deals to bring in Hadi Sacko and Kemar Roofe, who can also play out wide, have eased the pressure in this area.
Martinho has two years left on his contract at Carpi, and is a left sided player, who would provide competition for Stuart Dallas.
He was linked to Leeds last season, reported the Yorkshire Evening Post, before he clinched a move from Catania to Carpi. The latest report suggests the club's interest still remains.
Last season he struggled to make an impact in Serie A, playing in 11 games, failing to score or register an assist, while picking up three bookings.
Leeds owner Massimo Cellino