Schools which do not offer pupils the chance to play competitive sport "cement the social inequality that holds our nation back", the head of Ofsted has said.
Sir Michael Wilshaw, who is due to present a report into sports teaching in state and private schools at the Festival of Education at Wellington College, said:
Heads who treat competitive sport with suspicion or as an optional extra are not only denying youngsters the clear dividends that come with encouraging them to compete, they are also cementing the social inequality that holds our nation back.
More state schools are now encouraging sporting excellence.
They use competitive schools sport to energise the entire school culture.
They demonstrate that high school fees and large playing fields are not a pre-requisite to success.
More top news
A British scientist says the age women may be able to conceive children could soon be significantly extended.
Simon Cowell admitted he was "so embarrassed" after his shirt burst open during an X Factor audition.
Following the promise of further powers for Scotland, David Cameron is now talking about a new deal for the other home nations.