Delhi have left out Morne Morkel and injured Irfan Pathan and replaced them with Andre Russell and off-spinner Sunny Gupta, who plays for Tamil Nadu in the Ranji Trophy.
Pathan had injured his right hand during Qualifier I against Kolkata Knight Riders.
Chennai have fielded an unchaged side.
The winner of today's match will clash with KKR in the title-clash on Sunday.
Teams:
Chennai Super Kings: MS Dhoni (C), Murali Vijay, Michael Hussey, Suresh Raina, Dwayne Bravo, Ravindra Jadeja, Albie Morkel, R Ashwin, Ben Hilfenhaus, Shadab Jakati and S Badrinath.
Delhi Daredevils: Virender Sehwag (C), David Warner, Mahela Jayawardene, Naman Ojha, Ross Taylor, Y Venugopal Rao, Sunny Gupta, Pawan Negi, Varun Aaron, Umesh Yadav and Andre Russell.