Sky Sports are reporting that the Gunners have already wrapped up a deal to sign a new defender while talks continue over the possible transfer of another target.
The Gunners have been very busy in the transfer market so far, following the arrival of Unai Emery as the new manager.
Emery secured the services of Stephan Lichtsteiner, only weeks after being named as the replacement for Arsene Wenger.
Following the transfer of the experienced former Juventus star, the Gunners are expected to make a move to sign more defensive players as Sokratis Papastathopoulos closes in on a move.
According to Sky Sports, the Greek defender, who has been pocketing £90,000-a-week wages at Dortmund, has now agreed to move to the Emirates stadium.
Indeed, Sky are also claiming that Arsenal are looking to sign a goalkeeper as well and thus, talks are being held with German side Bayer Leverkusen over a deal for Bernd Leno.