Only once before in the IPL has the concussion substitute been used when Vishnu Vinod replaced Ishan Kishan in Qualifier 2 between Mumbai Indians and Gujarat Titans in IPL 2023. Once again, this two teams are involved in the ongoing Match 56 at the Wankhede Stadium, Mumbai and the concussion substitute has been called upon. MI all-rounder from South Africa Corbin Bosch was hit on his helmet by a nasty bouncer from GT pacer Prasidh Krishna during the final over of the Mumbai Indians' innings and immediately sought medical attention. The mandatory concussion protocol was carried out and Bosch was fine to resume his innings. However, he got run out on the very next ball and ended his innings on 27 runs off 22 balls. Also Read | Thala misses training in Kolkata? Is MS Dhoni injured? In the next innings, MI were allowed to use the services of left-arm seamer Ashwani Kumar as a like-for-like replacement for Corbin Bosch as per the regulations laid out by the Board of Control for Cricket in India (BCCI) for IPL 2025. "A like-for-like replacement can be chosen from the nominated substitutes in case of a concussion. If a wicketkeeper sustains a concussion, the replacement can be selected from the available squad. If an overseas player suffers a concussion and the team has already used its four overseas slots, the replacement must be an Indian player from the substitutes." Concussion sub ➡ Ashwani comes on for Bosch!Hope you get well soon, Corbin 💙#MumbaiIndians #PlayLikeMumbai #TATAIPL #MIvGT — Mumbai Indians (@mipaltan) May 6, 2025 Here is the list of players who have been used as a concussion substitute since the rule has been introduced in the IPL since 2020 - Player concussed in Player concussed out For (team name) Against (team name) Year Vishnu Vinod Ishan Kishan Mumbai Indians Gujarat Titans 2023 Ashwani Kumar Corbin Bosch Mumbai Indians Gujarat Titans 2025 Interestingly, on both occasions it has been the same two teams involved with Mumbai Indians having to use the concussion substitute as a result of an injury.