Lousi represented the Junior Kiwis rugby league team in 2010 and 2011.
Club career
Rugby league
Lousi signed with Warriors until the end of the 2013 season and was the tallest and heaviest player in the squad.[3][4] He spent the 2012 season playing for the Auckland Vulcans in the NSW Cup before making his National Rugby League debut in round 20 as a last minute replacement for Steve Rapira, who suffered an injury in pre-match warm ups. Lousi had played a game for the Vulcans earlier in the day.[5]
Rugby union
Lousi signed with the NSW Waratahs for the 2015 season but, after gaining four caps, he suffered a shoulder injury which ended his Super Rugby campaign.[2] He joined the New South Wales Country Eagles team in the National Rugby Championship for the 2015 season. In 2016, he joined Sydney club Southern Districts. In 2019, he agreed to join Scarlets. In that same year he was selected to play for Tonga in the Rugby World Cup in Japan. Lousi was named the Scarlets' fans and players' player of the year in the 2021-22 season.[6] He signed a contract extension with the Scarlets in April 2024.[7]