[1] Previously, he played for Stade Français of the Top 14 League, the Leicester Tigers in England, the Pampas XV in the South African Vodacom Cup, and the Jaguares of Super Rugby.

In October 2013, five months after his international debut, English Premiership side Leicester Tigers signed 20-year-old Matera until the end of the 2013–14 season.

[11] Matera made his senior debut for Los Pumas against Chile in May 2013 and was subsequently named in the squad for the 2013 Rugby Championship, where he featured in all the games of that campaign.

[12][13] Matera was a big feature for Argentina in the 2015 Rugby World Cup, playing six of seven games for Los Pumas and helping them finish fourth overall.

Both the Delegación de Asociaciones Israelitas Argentinas (DAIA) and the National Institute Against Discrimination, Xenophobia and Racism (INADI) heavily condemned Matera’s tweets.