Rashid Khan picked up 18 wickets in 11 games in the 2017/18 edition of the BBL
James Pattinson couldn't participate in the previous season owing to a back injury and had to undergo surgery
He will be replacing Paddy Upton as the head coach of the Thunders.
The fielding standards are quite high this year in PSL.
"While it was a very difficult decision to leave, I now look forward to taking on new challenges at the Melbourne Stars," he quoted.
Rashid, the 19-year-old leg spinner who climbed to the top of the ODI bowling charts, was the equal-leading wicket-taker in BBL 7.
It would be interesting to see if the Thunder manage to grab the dynamic all-rounder or he will go to another side for the upcoming season.
The Australian all-rounder has an option to be retained by his BBL side for the upcoming edition.
On the other hand, Melbourne Stars will keep their fingers crossed and wait for Marcus Stoinis' decision.
Wade was seen fuming back to the pavilion after he was run-out.