PHOTOS: Meet Wenger's first January addition at Arsenal

The 20-year-old centre-back arrives from PAS Giannina, where he has made 16 Greek Super League appearances since breaking into the first team last season.

The North London club in a statement on its official website wrote: "Young Greek defender Konstantinos Mavropanos has signed for us.

"We’d like to welcome Konstantinos to the club and wish him well for the future."