Kolkata Knight Riders (KKR) take on Lucknow Super Giants (LSG) in an Indian Premier League (IPL) clash on Saturday.
It's a must-win game for KKR who still have an outside chance of making it to the play-offs but if they lose they will be out of the competition.
LSG, meanwhile are in a much comfortable position on the league table compared to their opponents, yet they would aim to clinch the tie and book their berth in the top four.
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Impact substitutes are new for this year in the IPL, and they could play a part in deciding the outcome of this match.
KKR vs LSG: Impact Player today?
KKR: Suyash Sharma, Mandeep Singh, David Wiese, Anukul Roy, and Narayan Jagadeesan.
Suyash Sharma replaced Harshit Rana as KKR's Impact player in the first innings itself.
LSG: Yash Thakur, Kyle Mayers, Daniel Sams, Deepak Hooda, and Yudhvir Singh.
Yash Thakur is likely to come as the Impact player in the second innings.
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What is the 'impact player' rule in IPL 2023?
The introduction of a new rule could be a massive game-changer for the IPL, with one player from each team per game able to be substituted mid-game.
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The concept was trialled in the BCCI domestic competition and was widely praised.
The IPL has confirmed that the impact substitute must come from a list of five players, as confirmed before the toss.
Substitutions can be made either before the start of an innings; at the end of the over; at the fall of a wicket or when a batter retires.
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Once replaced, the substituted player can take no further part in the match, not even field.
The substitute could replace any player from the starting XI at any point before the end of the 14th over of either innings and was allowed to bat and bowl his full quota of overs.
In the IPL, teams are permitted to field a maximum of four overseas players per match, meaning if four overseas players are named in the starting XI, the replacement player must be Indian.
The 'impact player' rule should offer greater tactical freedom than other systems that have been used previously in India and abroad, with the BBL scrapping their X-factor sub prior to the 2022/23 season.
