Dean Hammond joined the Warriors Academy from South Africa's Western Province in September 2013.
The explosive winger was handed his Warriors debut at the end of that month, coming on as a replacement at London Wasps.
The South African youngster went on to become a first-team regular under Dean Ryan's side throughout the 2013/14 season, scoring his first try for the club in the Amlin Challenge Cup aganst Biarritz.
The versatile back attended Stellenbosch University in South Africa and represented Maties and Western Province between 2011 and 2013.
He has also played at the South Africa Sevens in 2011 and represented the South Africa Under 20 squad in the IRB Junior World Championships in 2012.