Sunderland have tabled an £8m offer for Dynamo Kiev forward Jeremain Lens, according to reports.
The 27-year-old scored five times in 16 appearances last season, and has worked with Black Cats manager Dick Advocaat at PSV Eindhoven.
The Daily Mail claims that the North-East side want to make radical changes to their squad this summer, with Lens at the centre of a revamped forward line.
Lens has won two Ukrainian cups and one league title since he signed for Kiev in 2013.