The January transfer window is scheduled to be shut in the middle of next week and so there is ample time for Wenger to bolster his squad.
According to recent report, Arsenal scouts were present at Porto’s game to watch Danilo Pereira play in their 4-2 win over Rio Ave on Saturday.
The 25-year-old has seen his profile sky rocket in the last two years after joining Porto from Maritimo in 2015.
Danilo impressed the Arsenal scouts as he scored in a thrilling match that saw Porto come back from 2-1 down.
Porto clawed their way back to 2-2 before Danilo popped up to put his side in front in the 62nd minute.
Danilo is thought to have a £34.5 million released clause in his contract alerting Arsenal to the fact he could be available in the summer, according to A Bola.
The Portugal international has climbed back to the top of Liga NOS after being released by Benfica in 2010.
A spell aboard before an excellent two seasons at Maritimo earned the defensive midfielder a ticket back to the top with Porto.
Danilo’s rise culminated with playing his part in Portugal’s remarkable Euro 2016 triumph as he made five appearances on the way to the final.