The 28-year-old Canadian proved an instant hit with fans and team-mates alike after being signed by head coach Paul Thompson last summer, with his energetic style and tally of 55 points - including 24 goals - playing a big part in the club landing its fifth Elite League title.
Now Thompson has managed to persuade Nelson to remain in South Yorkshire for two further years and believes the club’s fans will see the best of him.
“I think Levi is in his prime,” said Thompson. “He is-28 years-old and he had a fabulous season for us.
“He was our second top point-scorer and he and Robert Dowd have great chemistry – there is something there we want to continue
“Levi is skilled, skates well and he comes to work every day. He hits and he whacks and is a general pain to play against and that’s what we want.
“He makes and takes big hits, he gets rocked and comes straight back at you. He has a great a great skill level as well, he scores and he creates.”
News of Nelson’s extension comes 24 hours after the club announced they would not be retaining goaltender Marek Pinc, defence man Russ Moyer and forward Conny Stromberg.