As if anyone needed more evidence that males have a distinct advantage when it comes to competing against females in sport, Spanish football has proven it once again.
SPANISH side Athletic Bilbao's male youngsters have beaten their women’s team 6-0 in a controversial friendly.
The teenage team was put together with 14, 15 and 16-year-olds, with a few players from the 'Cadet B' squad also included in the XI.
Bilbao have been accused of being disrespectful towards the women’s game and encouraging ridicule by posting the scoreline on Twitter.
Athletic Femenino are a professional team and have competed in the first tier of women’s football in Spain since forming in 2002.
They have won five league league titles, their last coming in 2016, making them the second most successful women's team in Spain after Barcelona.
Binary spokeswoman, Kirralie Smith, said the result was predictable.
“The best male athletes always beat the top female athletes, and in some cases, they thrash them,” she said.
“Even teenage boys, who have the advantage of going through puberty will have more speed, stamina and strength than adult women.
“It is unfair and unsafe to allow biological males to compete against females in any sport.”