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By Graham Wood
ATHENS, April 19 (Reuters) - Olympiakos Piraeus won the Greek Super League title without kicking a ball on Sunday after Panathinaikos suffered a shock 2-1 defeat at Panthrakikos.
Panathinaikos dropped to third spot and Vitor Pereira's Olympiakos, who play Levadiakos at 1930 local time, are 10 points ahead of second-placed PAOK Salonika with three matches to play.
It was the 42nd domestic crown for the Piraeus club, who have now won the league five years in a row.
Olympiakos came into the weekend needing a point to secure the title, but that was not necessary after Panathinaikos were undone by goals from Igor de Souza just before halftime and Christos Tzanis.