Suresh Raina, who returned home from Dubai before the start of IPL 2020, is retained by the franchise
Jofra Archer clobbered 27 off 8 balls with four sixes off Lungi Ngidi's final over that yielded 30 runs
IPL 2019 runner-up CSK will begin its IPL 2020 campaign against defending champion Mumbai Indians in the tournament opener on March 29 at Mumbai's Wankhede Stadium
Ending the day at a comfortable 312 for two, the hosts are 107 runs ahead of Sri Lankas first innings total of 205