Former Barcelona midfielder Alen Halilovic wants to return to Spain.
The Croatian has battled for minutes at Hamburg this season.
Sportske Novosti says three clubs are keen to bring the 20-year-old back to LaLiga - they report that Celta, Villarreal and Espanyol have already started negotiations to secure a six-month loan during the January window.
Halilovic impressed during the year he spent in Barça's B team and in the subsequent season's loan at Sporting de Gijón.
The player's advisers are looking to find a way of bringing him back to Spain and any of the three clubs who have made enquiries would be suitable for Halilovic.