41.3.4 If the umpires consider that the condition of the ball has been unfairly changed by a member or members of either side, they shall ask the captain of the opposing side if he/she would like the ball to be replaced. If necessary, in the case of the batting side, the batsmen at the wicket may deputise for their captain.
41.3.4.1 If a replacement ball is requested, the umpires shall select and bring into use immediately, a ball which shall have wear comparable to that of the previous ball immediately prior to the contravention.
41.3.4.2 Regardless of whether a replacement ball has been chosen to be used, the bowler’s end umpire shall