Troubled Parramatta star Kieran Foran's return to rugby league is being overshadowed by reports $75,000 was lost from his TAB account during a gambling binge.

The Daily Telegraph says the money was bet on the greyhounds and some gallops in South Africa in a two-hour spree hours after Foran returned to Sydney from a three-day stint at a Queensland rehabilitation centre.

But it is unclear who placed the bets, and both Foran and his manager were unavailable for comment, the Telegraph said.