Defending Indian Premier League (IPL) champions Kolkata Knight Riders (KKR) have retained six players ahead of the 2025 auction, including Rinku Singh, Sunil Narine, Andre Russell, Varun Chakravarthy, Harshit Rana, and Ramandeep Singh. Notably, KKR released their star fast bowler Mitchell Starc, who became the costliest buy in IPL history