Sunderland Echo understands that Sunderland are weighing up a summer move for Zambian defender Stoppila Sunzu.
The highly rated defender was on the verge of completing a move to Reading in the January transfer window, but the deal ultimately fell through.
He currently plies his trade at TP Mazembe of Congo DR, one of the most successful clubs on African soil, but is heavily tipped with a move to English Premier League.
According to the Sunderland Echo, the Black Cats are closely monitoring the player with a view to making a summer bid for his services.
Sunzu, 23, has a deal until June 2015 at TP Mazembe and is currently valued at £4 million by his employers.
The towering defender, who spent some time on loan at Chateauroux during the 2008/2009 season, has made a total of 37 appearances for Zambia national team and won the 2012 Africa Cup of Nations.