The Mumbai Indians, a five-time IPL-winning team, have faced a setback with their fifth defeat in the 2026 season, dropping them to the bottom half of the table. Their recent loss to Chennai Super Kings at home marked their third defeat at the Wankhede, a first in any IPL edition. The controversy arose when Shardul Thakur replaced Mitchell Santner as a concussion substitute, despite Santner’s shoulder injury. Questions were raised about MI’s decision, especially since they had already used their Impact Sub option earlier in the match. Shardul’s performance was lackluster as MI collapsed to 104 after Hardik Pandya’s dismissal. The rules for a concussion substitute allow a team to request a replacement if a player suffers a head injury. The match referee must approve the substitute to ensure fairness. While the rules may have been followed in Santner’s case, the optics of the situation stirred controversy.

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