Ghanaian Abubakar was leased to National First Division side Richards Bay FC in December last season, while the offensive-minded Japhta was sent to Mthatha Bucks.
According to a source, both men have since been deemed surplus to requirements in Bethlehem.
"Both Sello Japhta and Abubakar are not part of the coach's plan this coming season," says the source.
"They have both since been put on the transfer list."
In other club news, Stars coach Luc Eymael is currently assessing ex-Maritzburg United winger Devon Saal.