Alafoti Faosiliva joined Warriors in August 2016 and went on to make 17 appearances during his first season at the Club.
The back row scored tries against Gloucester Rugby and Cardiff Blues in his maiden campaign at Sixways and signed a new contract to remain at the Club in April 2017.
Faosiliva spent much of his early career on the international Sevens circuit and was part of the Samoa side that won the IRB Sevens World Series in 2009/10.
The powerhouse forward then had spells with European giants Toulon and Premiership side Bath Rugby, where he spent three seasons.
Faosiliva has over 20 caps for Samoa and made two appearances for his country at the 2015 Rugby World Cup.