Ambrosini received her maiden call-up to the senior national squad in 2024. She made her senior international debut for Las Leonas in December, during the first of two Argentina legs of the 2024–25 Women's FIH Pro League, held in Santiago del Estero. Then, in February, she returned to play in the Pro League in Santiago del Estero against Belgium and Australia. Months later, she was called up again for the European Pro League in June, where they faced Spain, England, India, and China. Finally, she played in the Copa América in Uruguay in July, where they faced Uruguay, Canada, Paraguay, Chile, and the United States.
She has been named in an extended national squad for 2025.[2][3]
