Former West Ham manager Alan Curbishley has won his case for wrongful dismissal against the English Premier League club.
Curbishley quit the Hammers at the start of last season, after the Londoners sold Anton Ferdinand and subsequently George McCartney to top-flight rivals Sunderland against his wises.
The former Charlton boss insisted West Ham had ignored a clause in his contract giving him ultimate sole authority in relation to the sale and purchase of players at Upton Park.
And now the Premier League's managers' arbitration panel has unanimously found in his favour and dismissed a counter-claim by West Ham for the cost of employing Gianfranco Zola and the Italian manager's assistant Steve Clarke, who were taken on after Curbishley resigned in September last year.
The amount of compensation Curbishley will receive has yet to be assessed.
A statement issued by the England's League Managers Association (LMA) on Tuesday said: "The tribunal upheld Alan Curbishley's right to have ultimate sole authority in relation to the sale and purchase of players, found that the conduct of the club amounted to a fundamental breach of contract and that Alan Curbishley was therefore entitled to resign."
Former West Ham player Curbishley said: "I am obviously delighted with this result. I very much enjoyed my time at West Ham and never wanted to leave.
"But on joining the club I insisted that my contract contained a clause confirming that I would have final say on the selection of players to be transferred to and from the club.
"The club completely ignored my contract when selling Anton Ferdinand, and when George McCartney was then sold, the club having given me assurances that no players would be leaving the club after the sale of Anton Ferdinand, I had no alternative but to resign.
"My authority and integrity were undermined and my position was made untenable," Curbishley, 52 on Sunday, said. "I now wish to put this entire matter behind me."
LMA chief executive Richard Bevan said: "Naturally we are delighted with the outcome for Alan but, at the same time, sorry he wasn't able to continue at West Ham United.
"The findings of the tribunal demonstrate the critical importance of respecting contracts which need to set out the roles and responsibilities of the parties in clear and unequivocal terms."
Curbishley, a former West Ham apprentice who made 85 first-team appearances as a player for the club, returned to Upton Park in December 2006 and oversaw the side's successful fight against relegation from the Premier League.
And in his first full season in charge Curbishley guided West Ham to a tenth-place finish in the top flight.
Curbishley's case follows that of former Newcastle manager Kevin Keegan, who last month was awarded two million pounds for constructive dismissal after he too felt his authority over transfers had been undermined by his employers.
