A course close to the player told Turkish-football.com that Unal does not want to play second-tier football next season and that he is closing in on a move to an Eredivisie club on loan.
The Turkish international striker found the back of the net nine times and setup two goals in 11 matches for NAC Breda after joining the club in January.
NAC narrowly missed out on promotion to the Eredivisie however, Unal wants a more challenging role next season.
Unal is currently unable to play in England due to not having a work permit – he is a non EU citizen. The 19-year-old will have to be loaned out until he meets the necessary criteria set by the FA to play in the Premier League.
NAC do have a partnership agreement with City regarding youth development according to the Manchester Evening News.
The Citizens signed a five-year deal with NAC last April which will result in the Premier League outfit sending over four to six players between the ages of 18 and 21 to the Dutch side.