The scammer hacked Ntshangase's phone and sent messages to his friends and family saying he had been arrested and needed money to pay bail.
Ntshangase's manager Sizwe Ntshangase confirmed the illegal activity had already cost one victim dearly.
"They hacked his phone. Already one of his relatives has been conned [out of] R9000," he said.
"I want to warn people not to deposit any money if they receive messages from his phone number.
"Phumlani was never ever arrested and has since changed his number."
Phumlani's teammate Thabo Mnyamane and Mamelodi Sundowns midfielder Andile Jali have had similar experiences.