Director of Rugby Kingsley Jones said, "I am really pleased that Dwayne has committed to a new deal. He could have had his pick of other clubs to join but has committed himself to Sale Sharks and he will play a very important role with the club. He is a complete professional both on and off the field and is a very well respected member of the squad."
Dwayne said, " I have thoroughly enjoyed my time at Sale Sharks and have been made to feel very welcome from day one. We have a good set of players at the club and I am looking forward to helping them achieve success in the next two years. I still have ambitions to play for Wales too and hope to put myself into contention for a call up before the end of the Six Nations."