 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.As of the end of June 2019, Denly has scored 28 first-class centuries, including two double-centuries and a score of 199.