Sagario started his career in Uruguay playing for Carrasco Polo Club in 2006.

He spent a year playing in the reserves until he signed his first professional contract in August 2010.

On 21 August 2011, Sagario signed a new deal with Spanish side UE Santboiana.

Sagario signed a three-month contract with Irish Pro12 side Munster in October 2015.

In mid 2014, he suffered an injury which prevented him from playing in the 2015 Rugby World Cup – repechage qualification matches against Hong Kong and Russia.