BBC News, Buckinghamshire
Devonte Aransibia started the season at Chesham United in Buckinghamshire and later made appearances for Bedford Town and Hertfordshire side Royston Town.
Manager of Royston Town Chris Watters posted on social media that the 26-year old was "always quiet but always smiling".
Players and staff at Norwich City will wear black armbands during tonight's fixture against Preston North End. In 2013 the midfielder joined the club's academy and progressed through the youth groups before departing in 2019.
Darren Huckerby, who coached him during his time at the Canaries, described it as "absolutely devastating news".