The Saracens tighthead prop replaced Leon Brown in the 2022 Wales touring squad to South Africa when the Dragons front row was forced to withdraw due to a nerve issue sustained on club duty.
The ex-Wales U20s prop signed for Saracens as a 21-year-old in May 2019, not long after fellow Welshman Rhys Carre had also signed on the dotted line for the Allianz Park outfit.
A strong ball carrier, Wainwright attended Prestatyn High School and began his rugby journey at Rhyl Rugby Club before moving to RGC, where he made his Welsh Premiership debut at 18.
He was a regular starter in the front row for the North Wales outfit and his performances earned him international recognition.
The tighthead was selected for Wales’ 2018 U20 Six Nations campaign and made his debut in a 36-3 victory over Scotland in the opening round.