Southgate has been rewarded with a contract extension until the end of 2024 after leading the Three Lions to a first major tournament final in 55 years at Euro 2020, three years after a first World Cup semi-final since 1990. Initially appointed on an interim basis, Southgate was seen as the squeaky-clean role model the Football Association needed after his predecessor, Sam Allardyce, was brought down by a newspaper sting that alleged he offered advice on how to “get around” rules on player transfers. A three-year spell at Middlesbrough, which ended in relegation from the Premier League, and mixed results with England’s under-21s was all Southgate had to offer on…