Must-win battle: Both teams on 8 points from 9 games with 5 matches left. "No room left for error. "Table stakes: CSK 6th with 4 wins/9. DC 7th with 6 points from 7 matches. Winner stays alive, loser likely out. The incident: April 25 vs PBKS, Ngidi ran back for a catch, lost balance, fell heavily on back of his head/neck. Stretchered off, ambulance to BLK-Max Super Speciality Hospital. Diagnosis: Complaints of headache + neck pain but stable. Discharged same evening. Return: Cleared concussion protocols. "100% fit" and back at practice. Pulled off risky one-handed catch in training, showing no hesitation. Ngidi’s message: “Thank you for the messages. All good. They are also looking like a team that knows how to move forward. For DC, KL Rahul is finally getting support from the other batters, while they have zeroed in on Nitish Rana as No. 3. Mitchell Starc's three-for in his first game for DC has added an edge to their bowling. CSK, meanwhile, are batting around Ruturaj Gaikwad and are showing faith in their new buy Kartik Sharma. Some impactful runs from Shivam Dube and Dewald Brevis would just elevate CSK from here on. Key bowler: Joint-highest wicket-taker for DC with 7 wickets, started season with 3/LSG. Huge miss: DC lost to PBKS chasing 265 after Ngidi didn’t bowl – “was a huge miss. ”Pace attack boost: Starc dismissed Jaiswal last game. Ngidi fit gives DC “significantly bolstered” pace attack vs CSK. CSK connection: Played for CSK 2018, won title. “Worked with Dwayne Bravo at CSK” on slower balls/yorkers. Now “returns to hurt them” Nitish Rana is a batter transformed. Originally selected, then dropped, and again brought into the side, Rana has scored 182 runs at a strike rate of 182 in his last four games, including two fifties. His improved game against good-length and back-of-good-length deliveries has been one reason behind his apparent ease at the crease, and his performances have also reflected in DC's strong recent run with the bat. Form: Beat MI by 8 wickets, completing 3rd league double over them. “Clinical dismantling… calm, efficient, ruthlessly professional. ”H2H: Lead DC 20-12, won 6/8 in Delhi. Beat DC by 23 runs earlier at Chepauk. Key man: Sanju Samson 315 runs, SR 168, 2 hundreds. But CSK “wins only when he fires. ”Missing: MS Dhoni ruled out vs DC due to fitness concerns. This is the first game on pitch no. 4 at the Arun Jaitley Stadium this season. Across the last two seasons, the team batting first has a 3-2 record, even though the toss decision has been to chase in seven of the last eight games. When India played on this deck at the T20 World Cup, they scored 209 for 9 before skittling Namibia out for 116.