Emerson Palmieri dos Santos Cavaliere, known as Emerson Palmieri or simply Emerson, is a Brazilian-born Italian professional footballer who plays as a left-back for Ligue 1 club Lyon, on loan from Premier League club Chelsea, and the Italy national team. Internationally, Emerson played for his native Brazil at under-17 level, but he later declared his desire to represent Italy, having been granted Italian citizenship in 2017. He has since been called up to the Italy national team, making his senior international debut with the side in 2018 and later taking part at UEFA Euro 2020, winning the tournament. Born in Santos, São Paulo, Emerson finished his formation in local Santos’ youth categories, and made his first team debut on 17 April 2011, coming on as a late substitute for Keirrison in a 3–0 Campeonato Paulista home win against Paulista. His first start occurred on 21 January 2012, in a 1–1 away draw against XV de Piracicaba. In February, he returned to the youth team, but he was called up to the match against Mogi Mirim in the following month. He also appeared against Ituano and Paulista, as the club was crowned champions of Paulistão for the third consecutive time. On 17 June, Emerson made his Série A debut, in a 0–1 defeat against Flamengo. He scored his first goal on 5 September 2013, but in a 1–2 loss at Atlético Paranaense.