According to a source, Sporting have suspended Mhlongo for a reason yet unknown.
The 37-year-old former Orlando Pirates assistant coach was hired by the NFD newcomers in July.
"Benson Mhlongo [has been] suspended by TS Sporting," the source told KickOff.com.
Contacted for comment, Sporting team manager Bheki Nkosi said Mhlongo went home on Friday "to sort something out".
"Is he suspended? No, he is not suspended. Yes, at the moment he is at home, he is not here.
"There is some thing he is going to sort out, it's not true that he is suspended. He left today [Friday]," Nkosi explained.
Pressed further on whether the ex-Pirates and Mamelodi Sundowns midfielder will be on the bench against Ajax Cape Town at Kabokweni Stadium today, Nkosi said: "I'm not sure, I will let you know tomorrow."
Sporting are ninth on the second-tier table with four points from three matches.