Emirates Stadium side set to make January swoop.
The former Standard Liege man moved to Ligue 1 side Marseille last summer and scored nine goals in 2014/15 despite starting just seven fixtures in all competitions.
The young forward has started the current campaign well, netting three goals and providing two assists in five Ligue 1 starts, and is now the subject of growing interest.
Arsenal’s local rivals Tottenham are also thought to be keen on the Brussels born marksman and a January battle between the two North London sides looks possible.
Arsene Wenger had been linked with summers moves for proven top-level goal-scorers Karim Benzema and Edinson Cavani but the Gunners boss opted against bringing in a fresh striking addition and will now have to rely upon Olivier Giroud, Theo Walcott and injured Danny Welbeck to fill his forward berths.
Michy Batshuayi netted on his senior Belgium national team debut in March and is considered one of the country’s hottest prospects.