The winger is one of the players to have requested the termination of his playing contact with Sporting of Portugal
Arsenal are hoping to complete a summer deal for Gelson Martins amid the uncertainty surrounding his future at Sporting.
Martins, the 23-year-old, has long been linked with a transfer to one of Europe’s biggest clubs, and he could become a free agent along with many of his team-mates as they have asked for their contracts with the Lisbon club to be terminated.
The winger, along with several other players including Bruno Fernandes, William Carvalho and Bas Dost, has made the move after the squad was attacked at the club’s training ground in May.
The fact Martins could be available for free has interested several clubs and, according to Corriere dello Sport, Arsenal and AC Milan are the two frontrunners.
The pair have reportedly been tracking the Portugal international for some time and they have now been alerted to his situation.
As yet it is uncertain whether Martins will be granted permission to terminate his contract with the Portuguese FA currently reviewing the situation.
Arsenal have already completed one signing this summer, bringing in Stephan Lichtsteiner from Juventus on a free transfer, while deals for Sampdoria midfielder Lucas Torreira and Borussia Dortmund defender Sokratis are expected to be announced in the near future.