Arsenal have signed defender Konstantinos Mavropanos from Greek side PAS Giannina for an undisclosed fee.The 20-year-old had been in talks with the Gunners after making 16 Greek Super League appearances following his breakthrough last season into the first team. Mavropanos, who was also wanted by Olympiacos, has represented Greece Under-21’s and is recognised as one of his country’s best prospects. Born in Athens, Mavropanos began his career with the youth side at Apollon Smyrni where he stayed for eight years. He then joined Superleague Greece side PAS Giannina in January 2016, signing a three-and-a-half year contract. After being named on the bench for the first team’s games against Panathinaikos and Xanthi, the then-teenager made his senior debut against Agrotikos Asteras in the Greek Cup back in November 2016, playing the full 90 minutes and helping
