Career
Mieres began playing rugby at a young age for Lobos, the only rugby team in his birthplace of Punta del Este, Uruguay. Due to his great speed and footwork, as well as a remarkable skill for tackling he was selected to play for the national youth teams throughout every category. In 2010, he received his first full cap for the first team of Los Teros and then went on to alternate between Los Teros XV"s team and the 7"s team, depending on each"s calendar.
Mieres began playing professionally in 2014 for Rugby Club Valpolicella of Verona, Italy of the second tier of the Italian Rugby Union championship, after outstanding performances in several test matches and the 2015 Rugby World Cup qualifyings.
Of the 31 players included in the Los Teros squad for the 2015 Rugby World Cup, only four were playing at a professional level (Mieres, Felipe Berchesi, Agustín Ormaechea and Mario Sagario). Mieres ranked third in the Most Offloads Made ranking of the 2015 Rugby World Cup during the group stage for having made seven offloads, the same as world renowned offloader Sonny Bill Williams of the New Zealand All Blacks.
In November 2015, he was tested on a week trial on Coventry Rugby Club, till he finally signed a new contract with the team
