Stuttgart have opened talks with PAOK over the potential transfer of Ioannis Konstantelias, who currently plays as a midfielder. Negotiations are active and ongoing after an opening bid was submitted, though there is reportedly still some distance between the clubs on valuation. However, discussions are said to remain open and constructive - as both sides explore whether there is a deal to be done. Sporting have not withdrawn their interest and could still influence the outcome. So far this season, Stuttgart are steady at both ends (2.09 goals scored per game, 1.42 goals conceded per game). The role for Ioannis Konstantelias would be to keep that balance while lifting performances across the pitch. Speculation continues to connect Stuttgart with Flavio Nazinho while no fresh rumours surround PAOK. More on this story as it develops. Need more Stuttgart transfer rumours? Follow @PlayerSwitchCom on Twitter for up-to-the-minute news from Stuttgart.