Ndzinisa joins his fellow Mbabane Swallows teammate and reported Kaizer Chiefs target Felix Badenhorst in trying to impress Phunya Sele Sele coach Serame Letsoaka.
"Yes, it's true. Both Badenhoerst and Ndzinisa are here training with us," Konco tells this website. "But it's still too early to say if they will sign or not."
The duo have been given two weeks to try to impress the Celtic technical staff.