Round 4 of the 2020 NRL season, Lewis made his NRL debut for the Melbourne Storm against South Sydney.[5][2] He had his Melbourne jersey (cap number 202) presented to him by former Melbourne player Ryan Hoffman. Lewis would make a handful of appearances for Melbourne in 2020, as he transitioned to full time sport after putting his teaching career on hiatus.[2]
In September 2021, a video was leaked to the media which showed Lewis along with Melbourne teammates Cameron Munster and Brandon Smith partying whilst Smith was taking an illicit substance which was alleged to be cocaine.
On 5 October 2021, Lewis was handed a $10,000 suspended fine and a one match suspension.[6]