Charlton, Sunderland battles for Bolton midfielder Erhun Oztumer.
Bolton midfielder Erhun Oztumer is becoming the most sought after play-maker for League one Third and Fourth racers Sunderland and Charlton
The 27-year-old joined Bolton on a free transfer last summer after scoring 32 goals in 95 appearances at Walsall.
He has been out of regular appearances at Bolton, having made just 15 appearances this season, and reports claim he will be allowed to leave this month.
However, Charlton and Sunderland while hoping to secure promotion from League One, have emerged as potential candidates to take him on.
Erhun may move back south with Charlton after starting his career with the Addicks, although he was released at the age of 16.