The 67-year-old Delneri joined the Udine-based club in October 2016 on a one-year contract which was later renewed for one more year. The club finished thirteenth last season.
Oddo led Pescara to promotion in Serie A in 2015-2016 but was sacked last February after failing to keep the club out of the relegation zone.
As a player, Oddo was part of Italy's 2006 World Cup-winning squad, making one appearance as a substitute at the finals.
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(Reporting by Silvia Recchimuzzi in Gdynia; Editing by Clare Fallon)
