Striker Tito Okello has requested his release letter, a source has said.
The negotiations for contract renewal have fallen through after a meeting between the player and the club held on Thursday.
Club coach Fred Kajoba was “very annoyed” with the development because he wanted the club and player to agree with an extension.
It is said that the player is linked to an unnamed club in Rwanda, Mbarara City FC and Wakiso Giants.
Okello started at SC Villa in the beginning of his career before joining BUL FC in 2012.
He has also played for Tanzania’s African Lyon, Mbeya City FC, KCCA and Hong Kong’s Benfica Macau.
He helped Vipers to league triumph last season and had won the FUFA Pilsner Super Eight in preseason.