I want to expand on this by not only letting a particular member of the apparently all-male Deathball league ICly lose their unequivocal male presentation, but even retcon other players so that they're ICly known to be female.
(Which player? Chen Mayonnaise, whose first name was a hit-favorite in the androgynous @shortdesc brainstorm that erupted in OOC-Chat yesterday.)
As far as I'm aware, there's nothing canon to contradict Sam Digits, Jimi Shu'Tout and Banger McGirk being not-male, and no reason at all to believe that Deathball should be any more gender-segregated than, say, sanitation technicians, corpsec agents, Street judges, gang leaders, hit solos, etc etc etc