Motlhaping is already training with Vasco after failing to win a contract at Mpumalanga Black Aces.
Vasco have confirmed the imminent signing of the 32-year-old, who was released from Celtic at the end of last season after a lengthy stay at the club.
Terms of his contract have already been agreed with only the completion of some of the paperwork outstanding.
Also joining Vasco is the ex-Chippa United duo of Sibusiso Mokoena and Abduraghmaan White, along with Mbulelo Wambi.
Vasco – who have been taken over by Mario Ferreira – will remain in Cape Town.
