 After captaining Kent in the Caribbean Regional Super50 competition, Denly played 12 matches for Karachi Kings in the 2018 Pakistan Super League where he was the fourth highest run scorer in the competition with 323 runs.In September 2018 Sydney Sixers announced that they had re-signed Denly for whole of the 2018–19 Big Bash, although following his selection for the England tour to the Caribbean he was only able to play of the side until early January.Later that year, Denly was bought by Kolkata Knight Riders in the 2019 IPL Auction.