Cricket has rules before the first delivery is bowled. MCC Law 1 deals with the people taking part: team size, nominations and the captain's responsibilities. Watch the short explanation from World Updates above, then use this guide to put it in context.
How many players can play?
Normally, each side has 11 players, including a captain. Teams can agree to a different number, but no more than 11 may field at once. A larger agreed team does not permit extra fielders. MCC Law 1.1.
Who decides the playing team?
The captain gives the nominated players' names to an umpire in writing before the toss. Under Law 1, changing a nominated player requires the opposing captain's consent. A replacement takes the original player's place; it is not a fresh opportunity to bat in an innings the original player has already completed. MCC Law 1.2.
What if the captain is unavailable?
A deputy takes over. Someone associated with the team may submit the nominations if necessary. After nomination, however, the deputy performing the captain's duties must be a nominated player, including at the toss. Captains also carry responsibility for their team's conduct. MCC Laws 1.3–1.4.
A substitute fielder is a different matter
Do not confuse replacing a nominated player with temporarily using a substitute fielder. Law 24 governs substitute fielding. The umpires must accept the reason, such as injury or illness during the match, or another wholly acceptable reason.
An ordinary substitute cannot bowl or act as captain. Wicket-keeping needs the umpires' consent, with a further restriction in the disciplinary situation covered by Law 42.7.1. A substitute's presence does not create an unrestricted new playing-team member. Read MCC Law 24.
For a particular tournament, consult its published playing conditions as well. Do not assume that a competition's special replacement procedure applies to every form of cricket.
Captaincy includes how the game is played
The Spirit of Cricket is about more than knowing when to appeal. MCC's preamble places emphasis on respect for opponents and umpires, accepting decisions, self-discipline and a positive atmosphere. It also makes clear that responsibility extends beyond the captain to everyone involved. MCC: Spirit of Cricket.
For a local team, the practical lesson is simple: organise the team list early, discuss uncertainty with the umpires and keep disagreements away from personal abuse. Understanding a rule should make a match easier to manage, not provide another reason for an argument.
Check the edition and the competition
This introductory guide explains the core points relevant to the supplied video; it is not a replacement for the full Laws or an umpire's decision on a specific incident. The embedded video is a 30-second explanation published by World Updates, not presented here as an official MCC production. The written explanation is independently checked against the linked MCC sources.
Use the player's controls to watch on this page. If the video becomes unavailable or the provider restricts embedding, use the Watch on YouTube link beneath it.