Vailani operates primarily as a No. 8 and made his Test debut for Tonga against Japan in November 2017.
The back-rower is a strong ball carrying forward with a background in the sevens format, during his previous four years spent in Japan.
In January 2018, Sione signed for Saracens and scored three tries in nine first-team appearances.
Vailanu has played four times for Tonga, which included a try at Millenium Stadium in their recent Autumn International against Wales.
February 2019 saw him sign a deal with Wasps after 18 months with Saracens.
(LS February 20, 2019)
|2017 - present|
|2018 - present|