Rules that are no longer valid in ODI cricket

#4 The bowling power play

The bowling power play used to be a set of 5 overs, where at most 3 fielders were allowed outside the inner circle. This power play was taken by the fielding side after the initial period of 10 overs. It was implemented alongside the batting power play in 2005 and was scrapped off in 2012, while the batting power play remained till 2015.

It didn't do justice to its name, as the fielding side had no advantage with a maximum of 3 fielders outside the circle and it turned out to be a bit of a burden for the fielding captain to get it out of the way.