The Anderlecht forward is believed to be unhappy in Belgium, and Sunderland are prepared to make an offer for the forward.
HITC broke the news that Okaka wanted to leave Anderlecht last week, after being accused of being overweight.
The powerful striker is now considering his future, and Sunderland are reportedly prepared to give him an escape route.
Sunderland are looking for a striker, with David Moyes’ current options at the Stadium of Light very short.
With Jermain Defoe out injured, Sunderland may be forced to play Fabio Borini as a centre forward for their first few matches of the campaign.
Okaka scored 13 goals in 27 appearances for Anderlecht last season.
Sunderland are the only Premier League club yet to make a signing so far this summer.