Indian Premier League franchise Kolkata Knight Riders (KKR) parted ways with head coach Jacques Kallis and assistant coach Simon Katich on Sunday - the former ending a nine-year relationship - as a player and then coach - with the franchise.

Knight Riders' appointed Kallis as their head coach in October 2015. He took over from Trevor Bayliss, the current England coach. Since his appointment, KKR made three consecutive playoff appearances but failed to make the cut in 2019. 

Katich was also appointed around the same time as Kallis. In IPL 2019, the side finished fifth, losing out on playoff qualification based on net run-rate, after a six-match losing streak midway through the season.

Kallis could remain a part of KKR, according to team CEO Venky Mysore.

"Jacques Kallis has been an integral part of the KKR family and will always remain so. We will be exploring ways of working with Jacques as we pursue our vision of establishing the Knight Riders brand as a global brand," Mysore said while announcing the changes. 

Kallis also released a statement following the decision. "After nine fantastic years with KKR since 2011, as a player, mentor and Head Coach, it's time to explore new opportunities," he said. "I would to like to thank the owners, management and fellow players for many happy memories."

Knight Riders are yet to announce replacements for the two coaches.