Niang is considering a future in Italy, he is deciding if Serie A and Venezia will be his destination, or if he will find another.
In recent days the negotiations with Venezia have accelerated.
There is constant back and forth between Venezia and Rennes, they are looking for agreement on a deal, the formula is a loan with purchase option.
The 1994-born attacker formerly of Milan, Torino, and Genoa should make his decision in the next 48 hours.
Beyond economic considerations, Niang's desire is to have a chance with Venezia. The definitive answer should come between Sunday and Monday.
Niang spent the first half of last season at Rennes, scoring one goal in 12 appearances. In the winter he moved to Al-Ahli where he had zero goals in five appearances.