JOSH Mansour’s Four-Nations campaign is over and the Kangaroos winger is highly unlikely to be fit to start the NRL season after rupturing his anterior cruciate ligament in a freak training accident.

Mansour’s worst fears were realised when he got the scan results.

The winger let out anguishing cries as he laid in pain at the Kangaroos St George’s Park training base. He was carried from the field, as shocked teammates looked on.

It was at the end of a small-sided touch football game when Mansour suffered the injury, after a collision with teammate Josh Dugan.

Josh Mansour is carried from the field. Picture: News Corp Australia Source: Supplied

Mansour looked to have been shielding the ball after a kick as Dugan attempted to score a try.

Training stopped instantly as the players crowded a heartbroken Mansour.

The Penrith winger was to play in Australia’s second pool match against New Zealand on Sunday (EDT) after starring for the Kangaroos in their opening Four-Nations match against Scotland.

The Panthers are preparing to fly him home on a chartered flight in a bid to fast-track his recovery.

Coach Anthony Griffin revealed the club has already contacted ARL officials to arrange transport for Mansour.

The Panthers flyer is expected to miss up to six months, which will rule him out for the start of the 2017 NRL season.

However, Griffin told The Daily Telegraph he remained hopeful Mansour could return earlier on the back of a strong rehabilitation.

Kangaroos coach Mal Meninga was stunned.

Josh Mansour had an excellent game against the Scots. Source: Getty Images

“It’s obviously shattering news for Josh,” Meninga said.

“He has been a popular member of the squad and was excellent for us against Scotland last Friday.”

Mansour scored two tries and ran for a game high 247 metres as he looked to have cemented his spot on Australia’s left wing.

Blake Ferguson is expected to earn a Test reprieve now after he was to be overlooked for the game against New Zealand with Mansour and Valentine Holmes having been picked to start on the flanks.

The Kangaroos can add another member to the squad but that is unlikely, unless there is another major injury to an outside back.