Please note that this is not the original review that appeared before. due to some problem the review got deleted. This is taken from a published source.
New one-day cricket rules explained
England and Australia became the first teams to use new rules announced by the International Cricket Council in a trial that will last until May 2006.
Substitutes - each team can use one substitute, who may bat or bowl as well as fielding.
They must name a 12-man team at the toss and nominate who will be the ’’supersub’’.
That player is eligible to bat and bowl and come on at anytime during the match.
He can bowl the the remaining overs left by the replaced player.
The replaced player cannot take part in any part of the remainder of the game.
Any number of fielding substitutes can still be used in case of injury, as before.
All 12 players gain a one-day international cap for the records.
Fielding restrictions - the old rules with 15 overs subject to fielding restrictions are replaced by three blocks totalling 20 overs
During the first 10 overs, now known as Powerplay 1, only two fielders may be outside the fielding circle, and at least two must be in catching positions.
Two more blocks of five overs, known as Powerplay 2 and Powerplay 3, are available to the fielding captain at any time with the same rules applying, but must be used in a 50-over innings.