The online petition, which is organised by sports charity All
Out, specifically targets FIFA following reports that the female
coach of Nigeria's women's football team banned lesbians from
competing.
She claimed love between two women is a "dirty issue".
Her comments come as the Women's World Cup launches in Germany -
and just days after the coalition government held a Downing Street
reception to publicly combat anti-gay attitudes on the pitch.
Hundreds of people have already signed the petition - and now
Czyzselska is asking fellow DIVA readers to do the same.
She said: "It's vital that we stand up against homophobia in
sport - both here in Britain and internationally. No team or
country should ever be allowed to discriminate on this basis.
"Please sign the All Out petition and ask FIFA president Joseph
Blatter to investigate the harassment and termination of players
'suspected' of being gay."
Sign the petition here