The Uruguayan was suspended in the aftermath of the club's Championship play-off semi-final defeat to Crystal Palace last season for alleged breach of contract, and was subsequently removed from his role as manager in June.

He appealed the original decision, but Brighton have announced that process is now complete with the initial ruling upheld.

A statement on the club's website read: "Following a suspension, investigation, disciplinary meeting, and separate appeal hearing, which was conducted by three members of the club's board in london on 11 July and 12 July 2013, Brighton & Hove Albion today confirmed that after further consideration Gus Poyet's dismissal for gross misconduct has been upheld.

"The panel's decision was delivered to Gus Poyet and his advisers a short time ago.

"The club's internal disciplinary process is now complete. In line with the club's policy to ensure and maintain confidentiality and dignity throughout this process, no further details of the disciplinary or appeal hearings will be released at this time."

Poyet joined Brighton in November 2009 and guided the club to the League One title in 2011, but was unsuccessful in his attempt to take them to the Premier League.