Nick Tsambouniaris January 16, 2019 Super League Kolovetsios signs new contract with Panathinaikos Nick Tsambouniaris January 16, 2019 Super League GREEK SUPERLEAGUE: Panathinaikos have tied down experienced centre back Dimitris Kolovetsios long-term, as the 27-year-old has agreed to sign a new 3-year contract which will keep him in green until 2022.