This was her first match in charge on the World Rugby Women 's Sevens Series circuit .
On 15 February 2014 , at the USA Women 's Sevens , Nievas took charge of a match between Australia and China .
This was Nievas ' first match in charge on the World Rugby Women 's Sevens Series circuit .
On 15 February 2014 , at the USA Women 's Sevens , Nievas took charge of a match between Australia and China .