On 13 August 2019, Club Athletico Paranaense confirmed that Boselli had joined the club on loan until December 2020.Furacão acerta com o jovem uruguaio Juanma Boselli, athletico.com.br, 13 August 2019 However, he left the club again less than a month later, even before making his debut. It was later revealed by the club's manager, Tiago Nunes, that Boselli "did not come to play in the first team" and that he "came to take the official photo with the black and red shirt but was immediately transferred to the U23 squad".JUAN MANUEL BOSELLI IRÁ AL AMÉRICA DE BRASIL, balonlatino.net, 6 September 2019 He then began training with América Futebol Clube (MG) and even played a friendly game for the club, before joining the club on 5 September 2019 on loan for the rest of 2019 to guarantee more minutes on the court.América anuncia a contratação do meia-atacante uruguaio Juan Boselli, otempo.com.br, 5 September 2019 However, he would return to Club Athletico Paranaense for the 2020 season, as the loan deal with the club was valid until December 2020. Boselli was registered for Paranaense's U-23 squad.Profile at Athletico Paranaens' official website, athletico.com.br
