, Dimopoulos, Negrepontis, and Emmanouilidis. Even before the end of his football career Negrepontis was also involved in coaching. He became the first coach in the history of AEK Patras, from their foundation in 1929, until their promotion to the
Achaea first division in 1931. In 1933, AEK Athens were preparing for a qualifying match against
Goudi. Their manager at the time was
Emil Rauchmaul and Negrepontis was on holiday at
Samos. The importance of the occasion was such that led him to prepare AEK for this crucial match and thus he became the first Greek manager of a major club, at a time when mostly foreign managers were hired. AEK became his first professional club to work as a manager and his involvement with the club lasted for 16 years in total. In his first spell at AEK, Negrepontis won two
Panhellenic championships and a Greek Cup, including the first domestic double by a Greek club in 1939. Additionally, several notable players emerged at AEK, such as
Maropoulos,
Tzanetis,
Goulios,
Delavinias,
Kontoulis,
Magiras,
Manettas and
Xenos. After leaving AEK in 1948, he joined
Fostiras, while in September 1949 he took over the technical leadership of
Olympiacos. In September 1950 he became the manager of
Panionios. Negrepontis also worked as the coach of
Greece in four different periods between 1933 and 1953. On 25 November 1949 under his guidance Greece achieved the largest victory of their history after a 8–0 win against
Syria at
Leoforos Alexandras Stadium. He also worked as the manager of the Greek military team where he won the
World Military Cup in 1952. In 1955 after a brief spell at Olympiacos, Negrepontis returned to AEK, where he won the Greek Cup in
1956. In February 1957 Negrepontis left AEK, but returned at their bench in 1958. In 1959 he took charge of
Atromitos. He also managed teams of the likes of
Panelefsiniakos,
Apollon Athens,
Ethnikos Piraeus,
Panegialios and
Panachaiki. ==Personal life==