A row has erupted after a girl's football team consisting of five transgender players won the pre-season Beryl Ackroyd Cup tournament in Sydney, Australia.
Flying Bats FC won every game they played over the course of the four-week competition, winning the grand final 4-0 at Macquarie Park on Sunday to take home the $1000 jackpot.
There were huge winning margins in some games, with one trans player scoring six goals in a 10-0 victory.
Furious parents have withdrawn their daughters from games due to safety concerns, telling News Corp that the women were unaware that they had signed up to compete against biological males.
Club officials have also contacted Football NSW to express their concerns, with some insisting that the Flying Bats should play in the mixed competition which includes men.
A transgender row has erupted at a girls' soccer tournament in Sydney, Australia
'Our girls are here to play for fun and expect to play in the female competition. They did not sign up for a mixed competition,' a senior club official told the Daily Telegraph.
'There's no transparency from Football NSW, the girls don't know if they are going to be playing biological males or not.
'Some of the parents were so concerned they would not let their daughters play … It was so disheartening for them to see thehuge difference in ability – they're killing it.'
On the Flying Bats' official website, they claim they are 'the biggest LGBTQIA+ women's and non-binary football club in the world'.
John Ruddick, a Libertarian Party MP who has campaigned on the issue of retaining biological sex rights, also blasted the scenes in the North West Sydney League.
'It's not just a question of fair sportsmanship,' Mr Ruddick said. 'It's also a question of physical safety for female playersborn female.'
Binary Australia spokeswoman Kirralie Smith said: 'North West Sydney Football and Football NSW continue to put girls at risk and create an unfair playing field,' Ms Smith said. 'Many teams are stressed about the situation.'
The Flying Bats won the Beryl Ackroyd Cup with ease, much to the fury of parents and coaches
She also alleged that some teams were told not to complain or refuse to play else they would be fined and referred to Anti-DiscriminationNSW.
A Football NSW spokesperson said the organisation takes 'pride in being at the forefront of developing inclusive policies for the sport in Australia and operates within the existing legal framework, including anti-discrimination legislation.
'Football NSW continues to align with Football Australia's adoption of the Australian Human Rights Commission's 'Guidelines for the inclusion of transgender and gender diverse people in sport', under which, community players are permitted to participate in Football on the basis of the gender with which they identify.'