Nathaniel Chalobah is a defender for Chelsea's youth and reserve teams. Though his profile is primarily that of a defender, he can also operate as a midfielder. He captained the Chelsea Under-18s to 2011-12 FA Youth Cup glory. Nathaniel has represented England at Under-16, Under-17 and Under-19 levels. Chalobah came through the Chelsea academy, having been there since his pre-teens. During the 2010–11 season he featured for Chelsea reserves while still a schoolboy, winning the national championship with the side that season. In 2011–12, Chalobah regularly captained both Chelsea's reserve and youth sides, and led the 2012 FA Youth Cup winning side. He signed a professional contract with Chelsea in January 2012 shortly after turning 17, lasting until summer 2014. Chalobah signed on loan for Championship side Watford on 31 August 2012 until January 2013. He made his professional debut for the club on 18 September 2012 against Brighton & Hove Albion. On 17 November, Chalobah scored his first goal for Watford in a 2-1 win over Wolverhampton Wanderers. He made his England under-16 debut at the age of 13 in October 2008, and his England under-17 debut aged 14 in July 2009. He won the 2010 European Championship and later captaining the side at the age of 15.