Greece international midfielder Charis Mavrias is set to join English Premier League side Sunderland from Panathinaikos, the Athens News Agency reported on Wednesday.
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The Greek Super League club said a verbal agreement has been reached over the transfer of the 19-year-old for a fee of for three million euros.
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The agency reported that Sunderland had an initial offer of two million euros rejected by Panathinaikos two weeks ago.
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Mavrias has made two appearances for the Greek national team and has played at all levels in the country's youth teams.
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He joined Panathinaikos in 2010 and in three seasons with the Athens club has played 51 matches, scoring three goals.