Panathinaikos announced having signed three players, on summer window's last day: Swedish international midfielder/winger Oscar Hiljemark (25, in the pic), French winger/forward Anthony Mounier (29), and Malian international midfielder Yacouba Sylla (26), respectively joining in from Genoa, Bologna, and Rennes. Only Mounier joined Greek club on a full basis.
Source: transfermarketweb.com