The latest law made by the ICC, who have ruled that substitutes will no longer be allowed for comfort breaks during play.
The issue came to a head during the 2005 Ashes, when sub fielder Gary Pratt ran out Ricky Ponting, The Sun reported.
Aussie skipper Ponting claimed England had been underhand in the series with their constant use of expert replacements.
But now a new regulation from the ICC will force players remain on the field - or play a man short if the player in question simply cannot hold it in.
Other rules now in place will see the batting side in one-dayers decide when they take one of the two powerplays after the first 10 overs.