Greece Sigalas won five consecutive
Greek League championships, while playing with
Olympiacos Piraeus, from 1993 to 1997. He also won two
Greek Cup titles with Olympiacos, in 1994 and 1997. He also served as the team's
captain. In 1997, while playing with Olympiacos, Sigalas won the European basketball
Triple Crown, meaning his team won the
Greek League championship, the
Greek Cup title, and also the
European-wide top-tier level
EuroLeague championship, all in the same season. As of 2020, it is still the only time it has happened in the club's history.
Italy Sigalas left
Olympiacos Piraeus in 1997, after winning the
EuroLeague championship with them, and he then joined the
Italian League team
Olimpia Milano. He played there during the 1997–98 season.
Return to Greece Sigalas then returned to the
Greek League the following year, to play with
Aris Thessaloniki. He stayed with Aris until 2000, when he transferred to Aris' arch-rival
PAOK Thessaloniki, with whom he played with from 2000 to 2002.
Spain Sigalas next played in the
Spanish League with
Granada, at the beginning of the 2002–03 season.
Back to Italy Sigalas returned to the
Italian League, to play with
Viola Reggio Calabria, at the end of the 2002–03 season.
End of career in Greece In the last years of his pro playing career, Sigalas returned home to once again play in the
Greek League, to finish his club career. He played with
Makedonikos in the 2003–04 season, with
Panionios in the 2004–05 season, and finally, Sigalas ended his career back with
Aris, where he played from 2005, until he retired in the year 2007. == National team career ==