Nigeria attacker, Michael Uchebo, has instituted legal action against Portuguese Premier League side, Boavista over his contract.
Uchebo joined Boavista as a free agent after representing Nigeria at the 2014 FIFA World Cup in Brazil.
But his relationship with the club turned sour just before the new season following changes in the club management.
Boavista demanded the 22,000 dollars a month contract of the striker be reviewed downwards.
Last season, the 26-old made 16 appearances but failed to score a goal.