Sikhakhane, Mngomeni and Spencer still had contracts with the club but have since reached settlements and have since been handed their clearances allowing them to join clubs of their choices as free agents.
Also falling in the same category is Sipho Mngomezulu, Bradley Ritson, Energy Murambadoro, Kampamba Chintu, Thokozani Mshengu and Ayo Oluwafemi who will all not be affected by the domestic transfer window which closed on Friday.
Jose Ferreira, the Wits CEO confirms that all the above players are now free agents.
"All of these players are now free agents," Ferreira tells KickOff.com.
Ferreira also clarifies that he along with the new coach at the club Antonio Lopez Habas had nothing to do with a dozen other players that are no longer at the club.
The list of departures from last season's squad include: Fabricio da Silva, Enrico Adolph, David de Oliviera, Patrick Phungwayo, Sifiso Vilakazi, Lehlogonolo Masalesa and Timothy Batabaire amongst others.
"When I got here most of these players were already gone," he explains.
Ferreira adds that they have now settled on their squad of 30 players for the new season with former Queens Park Rangers striker Patrick Agyemang having returned to England after training with the club for a few days.
"We will not be making any more signings because we are settled on the squad," says Ferreira whose club has been busy during the transfer window snapping up over a dozen players.
Youth international midfielder Ebrahim Seedat – who was recently signed after a spell in Belgium – is still waiting for the issuing of his ITC.
Of their foreign quota Wits have already registered three foreigners in Thomas Sweswe, Faty Paty and Ofentse Nato while Robin Ngalande is still waiting for the completion of his paperwork.