Report: Arsenal keeping tabs on Dortmund's Neven Subotic

Arsenal are apparently looking to add further depth at the back.

ESPN FC reported that the Gunners are eyeing a summer move for Borussia Dortmund defender Neven Subotic.

The Serbian, 26, has been a mainstay during his time with the German club, and this season has been no different. Subotic has made 20 appearances in the Bundesliga (16 starts) while playing in six of the club's seven Champions League matches.

While the January signing of Gabriel Paulista from Villarreal looked to solidify Arsenal's situation in defense, the recent dip in form of veteran Per Mertesacker, now 30 and still boasting the speed of a sleeping tortoise, could be forcing Arsene Wenger to seek reinforcements at the position