Born in Naples, Italy, Diego Armando Maradona Sinagra was the result of an affair between Maradona and a young local woman named Cristiana Sinagra. He was brought up by his mother. He has a half-brother named Diego Fernando Maradona Ojeda, born to his father in 2013. Maradona Sinagra had a passion for football and started playing at a young age showing promise by emulating the skills of his father. At eleven years old he was a part of the Napoli youth squad. Diego Junior represented the Italian national team at under-17 age level. In 2004, the young Maradona Sinagra joined the youth squad of Genoa for a season. An Italian court recognized Maradona's paternity in 1993, but Maradona Sinagra met his father for the first time in 2003, during a golf tournament in Fiuggi. Only in 2007, Maradona recognized Maradona Sinagra, the child born from his relationship with Cristiana Sinagra. There were rumours that Pope Francis, at that time the Archbishop of Buenos Aires, asked Maradona to recognize Maradona Sinagra as his son. Maradona's lawyers have denied this allegation. On 10 June 2015, Maradona Sinagra married Nunzia Pennino in a Roman Catholic church in Napoli and received Pope Francis' blessing. On 25 August 2016, Maradona publicly recognised Maradona Sinagra as his son and declared “I love him a lot and he’s very like me.” in front of the media in Buenos Aires.
His start in first team football came in the amateur leagues during 2005 when he joined Cervia, a team of the Eccellenza division of Emilia-Romagna, which was the subject of a national football reality show, named Campioni - Il sogno. He joined Internapoli, from Eccellenza Campania, in January 2006; after having been without a team for the first half of the 2005–06 season, he only played two games for the club as he suffered an injury which kept him sidelined. In 2007, he joined Quarto, another club in the Campanian Eccellenza; Quarto were victorious in the Eccellenza playoffs that season and were promoted to Serie D. He then agreed to stay at Quarto for the 2007–08 Serie D season, but left the club by mutual consent on 16 November 2007 following a head coach replacement which caused him concerns about his role in the team. He then signed for Venafro, a Molisan Serie D team, a few weeks later. On 21 January2008, Sinagra scored the first goal with Venafro from 30 metres. At the end of the season Sinagra left Venafro and he was bought by a beach soccer team, A.S.D. Mare di Roma. On 2 December 2008, he signed for F.C America –. In August 2009 he then signed for Juve Stabia, but on 11 September 2009 he left the team. He then played for U.S. Arzanese.
On 29 April 2008, Maradona Sinagra joined the Italy national beach soccer team for the FIFA Beach Soccer World Cup qualification which was held from 11 to 18 May in Spain. On 12 May, Sinagra made his debut in the national team in the match against Greece. Maradona Sinagra played four matches in the Beach Soccer World Cup's qualification and eventually placed Italy fourth, qualifying to the World Cup. In June 2008, he left Venafro and he was bought by a beach soccer team, A.S.D. Mare di Roma. He made his debut in Beach Soccer's Serie A on 27 June 2008 in the match against Alma Juventus Fano, scoring a goal. He scored six goals in three matches for Mare di Roma, convincing Italy's coach Giancarlo Magrini to include him for the 2008 FIFA Beach Soccer World Cup. Italy eventually placed second in the World Cup, losing 5–3 in the final against Brazil. Maradona Sinagra scored two goals for Italy in the competition. In the championship Maradona Sinagra scored a dozen goals allowing his team, Mare di Roma, to advance to the final phase for the Italian title. Mare di Roma was however eliminated in the quarterfinals. In 2009, Maradona Sinagra was bought by Napoli Beach Soccer. Maradona Sinagra scored eight goals, allowing his team to win the Italian beach soccer championship for the first time in its history.
