Viliami Hakalo joined Saracens in the summer of 2018 from Championship outfit Nottingham.
Hakalo has nine international caps for Tonga.
Appearing a number of times in the Premiership Rugby Shield, the centre, who can also play wing, made his first-team debut for Sarries in January 2019 in a win over Harlequins in the Premiership Rugby Cup.
The Tongan boasts a wealth of experience having played over 100 career games and nine times for his country.
He made his international debut in 2006 with his last appearance coming 10 years later against Samoa.
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