George Bailey is set to become the first Hurricanes player to reach 50 games milestone.
The Stars lost their way after Gulbis and Dunk's 50-run opening stand.
Melbourne Stars are expected to continue their winning streak by handing 6th defeat for the Scorchers.
All the news stories that hogged the headlines today.
Maddinson has made nine international appearances for Australia.
The batsman, fortunately, survived the scare and was allowed to remain at the crease after a thorough inspection by the physio.
The Australian opener last played for the national side in the year 2016.
"While it was a very difficult decision to leave, I now look forward to taking on new challenges at the Melbourne Stars," he quoted.
Glenn Maxwell's knock of 84 went in vain.
Sixers chased down the paltry total with eight wickets in hand easily.