Jonathan Calleri (; ; born 23 September 1993) is an Argentine professional footballer who plays as a striker for Brazilian club São Paulo. Calleri started his career at All Boys and played for Boca Juniors for one season before signing for Deportivo Maldonado. A series of loans have since ensued, firstly to Brasileirão club São Paulo, then to Europe with West Ham United of the Premier League, and La Liga clubs Las Palmas, Alavés and RCD Espanyol. After this period of loans to european clubs, he returned to South America, rejoining São Paulo. Club career All Boys On 14 August 2013, Calleri debuted for All Boys against Estudiantes in the quarterfinals of 2012–13 Copa Argentina. He made his league debut on 7 September, against Argentinos Juniors, and played his first full game in his team's defeat against Godoy Cruz on 7 October. Boca Juniors In July 2014, Calleri signed for Boca Juniors, with coach Carlos Bianchi deciding to take-up the right that the club had with the player, a holding of 30% of the player' rights. On 27 July 2014, Calleri made his Boca debut in a 2–0 loss to Huracan. In the league, his debut came on 18 August as a substitute in a 1–0 win over Belgrano, and a week later coach Rodolfo Arruabarrena started Calleri for the first time in a 3–0 loss to Atlético Rafaela. On 1 November 2015, Boca Juniors were crowned champions of the Argentine Primera División, in which Calleri scored 10 goals in 26 matches and achieved his first title as a professional player. Three days later, Boca Juniors won the 2014–15 Copa Argentina. Deportivo Maldonado In January 2016, Calleri joined Uruguayan club Deportivo Maldonado. In an arrangement similar to a number of other players that have been registered to the club, he was loaned to Campeonato Brasileiro Série A club São Paulo FC in the same month. São Paulo (loan) On 3 February 2016, Calleri made his debut and scored his first goal for São Paulo as they drew 1–1 with Universidad César Vallejo in the 2016 edition of Copa Libertadores. On 13 July 2016, Calleri played his last match for São Paulo in a game they lost 1–2 against Atlético Nacional, in the Libertadores semifinals. He scored the only goal for São Paulo, in the 9th minute. Calleri said that it was his last game for the club and that he