Former Liverpool and Sunderland striker Djibril Cisse has signed a four-year deal with Panathinaikos to complete his £7m move from Marseille.Cisse, 27, scored 11 goals in 38 appearances in a loan spell with the Black Cats last season, but failed to clinch a permanent move.
He was greeted by around 3,000 fans when he flew into Athens on Thursday.
Cisse said: "I am very enthusiastic from the welcome and I have not witnessed anything like it in my life."
He added: "I really didn't expect nor imagine it."
Cisse, who is expected to be the highest-paid player in Panathinaikos history after agreeing a deal reportedly worth more than £2m a year, held talks with club president Nikos Pateras before successfully undergoing a medical and completing the formalities of the deal.
Panathinaikos are also close to sealing the transfers of Greece midfielder Kostas Katsouranis from Benfica, Sebastian Leto from Liverpool and Sweden defender Mattias Bjarsmyr from IFK Gothenburg.