In the Indian Premier League 2026 match between Mumbai Indians and Chennai Super Kings, Mitchell Santner was replaced by Shardul Thakur as a concussion substitute, sparking controversy. The decision raised questions over injury classification and “like-for-like” rules. MI later clarified that match officials approved the substitution after assessing Santner’s condition.

The IPL 2026 clash between Mumbai Indians and Chennai Super Kings at Wankhede Stadium sparked controversy after MI replaced all-rounder Mitchell Santner with Shardul Thakur as a concussion substitute. The decision came during MI’s heavy 103-run defeat and quickly raised questions about whether the substitution followed IPL rules.

The issue began when Santner injured himself while fielding, landing awkwardly on his shoulder after completing a catch during CSK’s innings. Although the injury appeared to involve the shoulder, match officials approved a concussion substitution, allowing Shardul Thakur to replace him and remain eligible to bat.

This move triggered debate because concussion substitutes are typically allowed only when a player shows symptoms of a head injury. According to IPL rules, the replacement must also be “like-for-like,” meaning the incoming player should closely match the role of the injured cricketer. Critics questioned whether Santner’s situation truly met concussion criteria or whether the rule was interpreted too broadly.

Mumbai Indians offers clarification