Emily Bridges -- a British transgender cyclist -- was set to race in a women's event this weekend ... but that has changed after the Union Cycliste Internationale disqualified her on Wednesday.
According to British Cycling, the 21-year-old was eligible for the April 2 race due to the British Cycling Transgender and Non-Binary Participation policy.
But, the UCI informed them since she's registered as a male cyclist -- who started hormone therapy last year -- she could not compete.
"We acknowledge the decision of the UCI with regards to Emily’s participation, however we fully recognise her disappointment with today’s decision," British Cycling said in a statement.