Crystal Palace are interested in Schalke midfielder Nabil Bentaleb, according to a source in Germany.
The former Tottenham academy graduate is for sale this month and wants to move back to England.
Schalke have confirmed to Sky in Germany, however, there is yet to be a formal approach from Palace.
The 25-year-old has not been part of Schalke's first team for a year due to unprofessional behaviour, including being late and failing to report for German lessons.
He is currently training with their second team after recovering from a knee injury, while the first team is on a winter training camp in Spain.
Meanwhile Crystal Palace winger Wilfried Zaha's representatives have also held preliminary talks with Bayern Munich following his decision to hire super agent Pini Zahavi.
How to follow the January transfer window with Sky Sports
Sky Sports will bring you the very latest news from the January transfer market with the return of three shows.
Start your day with Good Morning Transfers at 9am as our team of reporters bring you the latest news and insight. Transfer Talk then follows at midday delivering analysis of the biggest stories. Then join us at 7pm for the definitive round-up of the day's news with The Transfer Show.
Meanwhile, the Transfer Talk podcast will also be back at the turn of the year with more expert analysis from here and across the continent.
And as well as tuning into Sky Sports News, don't miss a thing with our dedicated Transfer Centre blog.