Foremost among the reasons would be the waning powers of their talisman. Dhoni the batsman we see now is not the same force.
Chennai Super Kings have managed to win just three out of their 10 matches and lie at the bottom of the points table.
Former India cricketer Ajit Agarkar feels that CSK skipper MS Dhoni should not be batting lower than number 5.
Srikkanth slams CSK skipper MS Dhoni's 'ridiculous' selections, asks what 'spark' did he see in Jadhav
Former India captain Kris Srikkanth slammed MS Dhoni's 'ridiculous' calls for Chennai Super Kings in the ongoing IPL.
Batting first, Chennai Super Kings were stopped at 125 for five at the Sheikh Zayed Stadium which the Royals chased down in 17.3 overs.
In the CSK playing XI, Josh Hazlewood replaced the injured Dwayne Bravo and Piyush Chawla came in for Karn Sharma in a leg-spinner for leg-spinner change.
For three-time champions CSK, a loss on Monday might mean they will fail to make it to the top four of the table for the first time in 13 years
Delhi Capitals batsman Shikhar Dhawan, who made an unbeaten 101, felt Jadeja bowling the final over turned out to be an advantage for their team.
Star sprinter Yohan Blake questioned CSK skipper MS Dhoni's move to give Ravindra Jadeja the final over on Saturday night.
Bravo's inability to bowl the final over cost CSK their IPL game on Saturday as Delhi Capitals knocked off the required 17 runs.
CSK all-rounder Dwayne Bravo, who was off the field, is normally very effective with his slower balls in crunch situations.
CSK are staring at the possibility of not qualifying for the play-offs for the first time in their history.
CSK made one change to their playing XI with Piyush Chawla making way for Kedar Jadhav.
The three-time champions will look to build on the win over SRH as the league phase moves towards the business end.
Tahir has not played a single game for CSK this season and there has been serious speculation as to when the Proteas spinner will be seen in action in the ongoing Indian Premier League.