Darts players Anca Zijlstra and Aileen de Graaf have announced their
departure from the Dutch women's darts team because they refuse to
team up with trans woman Noa-Lynn van Leuven.
Noa-Lynn van Leuven with team mates:

"The moment you're embarrassed to be a part of the Dutch Team, because
a biological man is playing in the women's team, it's time to go," Zijlstra wrote.
As far as I can tell (and I could be wrong) in sports—all sports—people
born as males have had the advantage of ten or 15, or even 20 years of
developmental testosterone. And this obviously results in an adult male of
increased muscle and body mass, and increased height and reach. M2Fs
often claim that because of targetted hormone treatment, their testosterone
levels are extremely low—matching that of a birth female. That may well
be true, but the relevant point is that past puberty,
they've already developed
their superior body strength, physique, and stamina.
I have nothing against transgendered persons
per se, but I still believe that
there is no place for M2Fs in competitive female sports of any/all kinds.