The South African pacer had played for Kings XI Punjab in the last IPL.
Ashwin has already had to face a lot of criticism for the act in the 12th edition of the IPL.
"I thoroughly enjoyed my time with the Kings XI franchise and wish to thank them for the season I had in charge," Hesson said.
Most of these cricketers have been exceptional for their IPL franchises and it is time for the Indian selectors to give them their due.
He will most likely play in the overseas T20 leagues now.
Ashwin's KXIP was knocked out after the round-robin stage.
CSK's Imran Tahir and SRH's David Warner bagged Purple and Orange caps respectively for their scintillating IPL outing.
These teams were not the best tactically and they paid the price for the same.
Punjab needs to make some tactical changes moving to IPL 2020 if it has to entertain any dream of winning the trophy.
Most of the capped players have given good performances, but there are few who failed to deliver on their promise.