Per the source, talks have reached an advanced stage and the Black Eagles are on the verge of completing the loan deal.
There is however, one sticking points. Nasri’s agent wants a guarantee on the €6.5 million his client is set to earn if he stays at City.
The Citizens want Besiktas to cover the tab however, the Turkish champions want to negotiate a deal that would include a half-way split.
City and Besiktas are yet to reach an agreement on his wages but should a compromise be made Nasri will join the Istanbul giants on a temporary move for the season.
Besiktas are under financial constraints due to being under the watch of FFP and would not be able to pay his wages in full.
The Eagles would however, be able to guarantee Nasri first-team action in the Champions League and the team is among the favourites in the title race.