Marnus Labuschagne replaced Steve Smith as cricket's first concussion substitute after Smith was hit by a Jofra Archer bouncer. England questioned whether it was a like-for-like replacement.
During the second Ashes Test at Lord's, Steve Smith was struck on the neck by a fearsome Jofra Archer bouncer. Smith initially continued batting but was later ruled out of the rest of the match with delayed concussion symptoms.
Marnus Labuschagne was called in as cricket's first-ever concussion substitute, a rule introduced by the ICC only weeks earlier. England's concern was whether Labuschagne — who would go on to become the world's number-one ranked Test batsman — was truly a "like-for-like" replacement for a player who had been batting at number 4.
Labuschagne came in and was immediately hit on the grille by Archer on his first ball. He survived and scored 59 in the second innings, playing a crucial role. The match ended in a draw.
The incident raised important questions about the concussion substitute rule: Who decides if it's like-for-like? Could teams game the system by replacing a struggling bowler with a specialist? While Smith's concussion was genuine, the rule's potential for exploitation became a topic of intense debate.
Substitute was approved by the match referee. Labuschagne scored 59 and his career took off from that moment. The rule has been refined since.
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Various county and representative sides
1864-06-01
The legalisation of overarm bowling in 1864 created an immediate grey zone: how high could the arm go, and at what point did a fast delivery become an illegal throw? Through the 1860s English cricket struggled with this question as a succession of fast bowlers developed actions that umpires suspected but rarely no-balled, creating a climate of suspicion that would recur in every generation of cricket thereafter.