The attacking midfielder is Lidoda Duvha's top goalscorer in the Premier Soccer League (PSL) with four goals this season.
According to an IOL source, Usuthu, who recently parted ways with Ovidy Karuru, have registered their interest in Kapinga.
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“Yes, it is true that AmaZulu have progressed in terms of talks with Leopards about the possibility of signing Kapinga," a source told the publication.
"The two clubs have agreed on a number of things. There’s one item that still needs to be discussed, and then the deal will be sealed.