Júnior Alonso’s Family: Wife, Children, Parents and Siblings

Last Updated on September 15, 2026 by Helena

Júnior Osmar Ignacio Alonso Mujica is a Paraguayan professional footballer who plays as a centre-back or left-back for Atlanta United and the Paraguay national team. Born on February 9, 1993, Alonso has built a long career across Paraguay, France, Spain, Argentina, Brazil, Russia and, most recently, the United States. Away from football, he is a devoted family man who is married to his longtime partner, Montse Alcaraz, and is the father of three children.

Who Is Júnior Alonso’s Wife?

Júnior Alonso’s wife is Montserrat “Montse” Alcaraz. The couple were together for many years before officially getting married in December 2021.

Alonso and Montse celebrated their religious wedding at the San Lorenzo church in Ñemby, Paraguay. At the time of their marriage, Paraguayan media described Montse as Alonso’s longtime partner and the mother of their first two children.

Their relationship dates back well before Alonso became an established international footballer. Montse has accompanied him through several stages of his career, including periods when the defender played outside Paraguay.

When Alonso moved to Lille in France in 2017, his wife and their eldest son later joined him there, providing important family support while he adapted to European football.

How Júnior Alonso Met Montse Alcaraz

Júnior Alonso and Montse Alcaraz share strong roots in Ñemby, Paraguay. Both attended the Escuela Carlos Antonio López during their childhood, according to information published by the Instituto Galo.

The couple’s connection with their hometown has continued even after Alonso’s football career took the family around the world. In 2025, Montse participated in an Instituto Galo visit to their former school and spoke emotionally about the importance the institution has for the family.

Alonso’s nephews also attend the same school, maintaining another generation of the family’s connection with the community.

Does Júnior Alonso Have Children?

Yes. Júnior Alonso and Montse Alcaraz have three children: two sons and one daughter.

Their eldest child is a son named Milan. Alonso and Montse later welcomed a daughter, followed by another son.

ABC Color confirmed in June 2026 that Alonso is the father of three children—two boys and one girl—and that his family regularly supports him at Paraguay national-team matches.

Who Is Júnior Alonso’s Son Milan?

Milan is Júnior Alonso’s eldest child. He was born around the beginning of 2015 and has occasionally appeared publicly alongside his father.

In January 2021, Alonso celebrated Milan’s sixth birthday with an Atlético Mineiro-themed party while playing for the Brazilian club. Photos published at the time showed the defender celebrating with Milan and Montse.

Milan also experienced part of his childhood abroad. When Alonso was establishing himself at Lille in France in 2017, reports noted that his wife and then two-year-old son joined him in the country.

Júnior Alonso’s Daughter

Júnior Alonso and Montse also have a daughter, their second child. She was born before the couple announced their third pregnancy in December 2022.

While photographs of Alonso with his daughter have appeared publicly, her name has not been consistently established by reliable sports and news sources. For privacy and accuracy, it is therefore better not to assign an unverified name to her.

When the couple announced their third pregnancy, Paraguayan media described their existing children as one boy and one girl.

Júnior Alonso’s Youngest Son

In December 2022, Alonso and Montse announced that they were expecting their third child. The defender celebrated the news publicly, thanking his wife for the family they had built together.

A gender-reveal celebration followed in January 2023, when the couple confirmed that their third baby would be another boy. This meant their daughter would remain the only girl among the three children.

By June 2026, ABC Color confirmed that Alonso had three children—two sons and a daughter. The younger boy’s name has not been consistently reported by reliable sources.

Who Are Júnior Alonso’s Parents?

Júnior Alonso comes from a working family in Ñemby, Paraguay. His father is Osmar Alonso, while the name of his mother has not been reliably established in major public sources.

His family background played an important role in developing the discipline Alonso later carried into professional football. Before becoming a professional player, he spent part of his childhood working alongside his father.

Who Is Júnior Alonso’s Father, Osmar Alonso?

Osmar Alonso is Júnior Alonso’s father. During Júnior’s childhood, Osmar worked as a motorcycle mechanic and operated a repair workshop.

Júnior has recalled that he stopped playing organized football for a period at around 12 years old and began helping his father repair motorcycles. He continued working in the workshop before eventually earning an opportunity to trial with Cerro Porteño as a teenager.

Speaking about his childhood in 2025, Alonso explained that his father later studied and developed professionally, moving from motorcycle mechanic into administrative work. Júnior credited the experience of working alongside him with teaching him discipline and the importance of daily effort.

Osmar Alonso has also been involved in community life in Ñemby. Paraguayan media have reported his involvement with a local cooperative and politics, while the Instituto Galo identified him during a 2025 visit to Júnior’s childhood school.

Who Is Júnior Alonso’s Mother?

The name of Júnior Alonso’s mother has not been reliably disclosed in the major interviews, club profiles and Paraguayan reports available publicly.

Although Alonso’s full name is Júnior Osmar Ignacio Alonso Mujica, it would not be responsible to use his maternal surname to guess his mother’s full identity. Reliable reporting about his childhood has focused much more heavily on his father and the motorcycle workshop where Júnior worked.

For that reason, his mother’s name and personal background should be regarded as private unless Alonso or a trustworthy source confirms them publicly.

Does Júnior Alonso Have Siblings?

Yes. Júnior Alonso has at least one younger brother.

The defender personally referred to his younger brother while discussing his childhood with ge in 2025. Alonso explained that, unlike him, his youngest brother did not experience the period when their father worked as a motorcycle mechanic.

This confirms that Alonso is not an only child. However, his younger brother’s name has not been reliably established in major sports reporting.

There is also evidence that Alonso has nephews. In 2025, the Instituto Galo reported that some of his nephews were students at the Escuela Carlos Antonio López, the same school attended by Alonso and his wife during their childhood. Public sources do not clearly establish which sibling or siblings are their parents.

How Júnior Alonso’s Family Shaped His Career

Júnior Alonso’s path into professional football was far from straightforward. He played futsal as a child before beginning eleven-a-side football, but temporarily stepped away from the sport and worked in his father’s motorcycle shop.

At approximately 16 years old, Alonso received an opportunity to trial with Cerro Porteño. After two weeks of testing, he was accepted into the club’s youth structure. Cerro Porteño was also the club he supported, making the opportunity particularly meaningful.

His father’s influence remained central to the story. Alonso later said that working with Osmar taught him discipline and the value of consistent work—qualities that helped him adapt to professional football and eventually build an international career.

Júnior Alonso’s Family and His International Career

Family has remained close to Alonso throughout his career abroad. His wife and children have accompanied him during different stages of his professional journey and have frequently been seen supporting him while representing Paraguay.

His career has taken him from Cerro Porteño to Lille, Celta Vigo, Boca Juniors, Atlético Mineiro and Krasnodar. In July 2026, Alonso began another international chapter by joining Atlanta United in Major League Soccer.

Atlanta United introduced Alonso as one of its veteran defensive additions following his participation with Paraguay at the 2026 FIFA World Cup. His experience and leadership were highlighted as important qualities for the club’s younger players.

Frequently Asked Questions About Júnior Alonso’s Family

Who is Júnior Alonso’s girlfriend?

Júnior Alonso does not have a publicly known girlfriend because he is married. His wife is Montserrat “Montse” Alcaraz.

Who is Júnior Alonso’s wife?

Júnior Alonso’s wife is Montse Alcaraz. They were longtime partners before marrying in December 2021 in Ñemby, Paraguay.

How many children does Júnior Alonso have?

Júnior Alonso has three children with Montse Alcaraz: two sons and one daughter.

What is Júnior Alonso’s eldest son called?

His eldest son is named Milan. He was born around early 2015.

Does Júnior Alonso have a daughter?

Yes. Alonso has one daughter, who is the middle child of his three children. Her name has not been consistently confirmed by reliable public sources.

Who is Júnior Alonso’s father?

Júnior Alonso’s father is Osmar Alonso. He previously worked as a motorcycle mechanic, and Júnior spent part of his childhood helping him in his workshop.

Who is Júnior Alonso’s mother?

Júnior Alonso’s mother has remained outside the public spotlight, and her name has not been reliably confirmed by established sources.

Does Júnior Alonso have siblings?

Yes. Alonso has publicly confirmed having at least one younger brother. His brother’s name has not been reliably disclosed.

Does Júnior Alonso have nephews?

Yes. A 2025 Instituto Galo report confirmed that nephews of Júnior Alonso attend the Escuela Carlos Antonio López in Ñemby, where both Alonso and his wife studied as children.

Where is Júnior Alonso’s family from?

Alonso has deep family roots in Ñemby, Paraguay, in the metropolitan area of Asunción. He spent much of his childhood there before joining Cerro Porteño.