England’s top division buys more teenage players than any top European league, and it’s creating a market all its own The boy prophesied to be the next Frenkie de Jong made a mere 20 first-team appearances in the Eredivisie for Ajax before moving on to Newcastle United this summer. Sean Steur is 18. And once a credible Premier League club came calling, there was little the four-time European champions could do to hang on to a prodigy who would sooner play for the 1968-69 Inter-Cities Fairs Cup…