|Full name||Marcelo Alexis Weigandt|
|Date of birth||11 January 2000|
|Place of birth||Avellaneda, Argentina|
|Height||1.75 m (5 ft 9 in)|
|Club Villa Ideal|
* Senior club appearances and goals counted for the domestic league only and correct as of 10:27, 5 June 2019 (UTC)|
‡ National team caps and goals correct as of 10:27, 5 June 2019 (UTC)
Weigandt came through the youth ranks of Boca Juniors, having joined in 2007 from Club Villa Ideal. His breakthrough came during the 2018–19 Primera División campaign, as he was an unused substitute for league fixtures with Gimnasia y Esgrima and Newell's Old Boys. Gustavo Alfaro selected the defender for his senior debut in the Copa Argentina on 19 April 2019 versus Torneo Federal A's Estudiantes, he played the full duration of a 2–0 victory. He appeared again later that month in the Copa de la Superliga versus Godoy Cruz, as they won the round of sixteen first leg away from home.
Weigandt represented Argentina at the 2017 South American U-17 Championship in Chile, featuring against Venezuela and Paraguay as they were eliminated at the first group stage. He previously appeared at the 2015 South American U-15 Championship in Colombia, winning the bronze medal. Weigandt received a call-up from the U20s in March 2019. He subsequently received a place in Fernando Batista's squad for the 2019 FIFA U-20 World Cup in Poland. He appeared in matches with Portugal and South Korea as Argentina were eliminated at the round of sixteen.
- As of 5 June 2019.
|Boca Juniors||2018–19||Primera División||0||0||1||0||2||0||0||0||0||0||3||0|
- "Argentina - M. Weigandt". Soccerway. Retrieved 29 April 2019.
- "Marcelo Weigandt". World Football. Retrieved 29 April 2019.
- "Obando, Weigandt, Retegui y Capaldo: ¿quiénes son los rapados de Boca?". TyC Sports. 11 January 2019. Retrieved 29 April 2019.
- "El juvenil que mata y muere por Boca Juniors". BeSoccer. 17 January 2019. Retrieved 29 April 2019.
- "En Boca desde los 6 años: quién es el chico que podría debutar ante Gimnasia". La Nación. 26 October 2018. Retrieved 29 April 2019.
- "Weigandt, el nuevo 4 de Boca: "Me encanta chocar y ver como los rivales se quedan tirados"". BolaVip. 16 January 2019. Retrieved 29 April 2019.
- "Weigandt, un soldado Albiceleste". AFA. Retrieved 29 April 2019.
- "Conociendo el futuro de Boca: entrevistas a Marcelo Weigandt y Alexander Fernández". Diario Xeneize. 10 April 2017. Retrieved 29 April 2019.
- "El DT Batista dio a conocer la lista de jugadores convocados para los amistosos en España". Grupo La Provincia. 15 March 2019. Retrieved 29 April 2019.
- "La Sub 20 de Argentina golea a Arabia Saudita en un nuevo amistoso". Marca. 25 March 2019. Retrieved 29 April 2019.
- "Quién es Marcelo Weigandt, el juvenil que "mata o muere" por la camiseta de Boca". Goal. 18 April 2019. Retrieved 29 April 2019.
- "Lista de convocados para el Mundial". AFA. Retrieved 4 May 2019.
- Marcelo Weigandt at Soccerway
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