The 2012 O'Higgins F.C. season is O'Higgins F.C.'s 49th season in the Primera División and their sixth consecutive season in Primera División.
 The club plays in three tournaments: The Primera División de Chile, Copa Sudamericana and the Copa Chile.
Primera División de México "(Mexican First Division)" Apertura 2007 is a Mexican football tournament - one of two shorter tournaments that together make up the Mexican football season - to determine the champion(s) of Mexican football.
 It began on Friday, August 3, 2007.
 On June 10, 2007, FMF General Secretary Decio de Maria revealed the groups for the upcoming tournament.
 Reigning champions Pachuca were eliminated in Repechaje by Cruz Azul by a double leg aggragate score of 6-0 (0-2 in the first leg, 4-0 in the second leg) and thus could not retain their title.
 Puebla was promoted to the Primera División de México after they beat Sinaloa in the ascension final thus, Querétaro was relegated to the Primera División A.
 This is the first time they are taking part in a Primera División tournament since they were relegated after Clausura 2005.
 Atlante made the move to Cancún, Quintana Roo, and will play in the Estadio Andrés Quintana Roo after having played in Estádio Azteca for over a decade.
 At their new home, on December 9, 2007 Atlante won the Apertura 2007 by defeating UNAM Pumas 2-1 after the first game ended 0-0 in Mexico City.
 It was Atlante's 3rd title.
Club Atlético San Lorenzo de Almagro, commonly known as San Lorenzo de Almagro or simply San Lorenzo (in English: "Saint Lawrence"), is an Argentine sports club based in the Boedo district of Buenos Aires.
 It is best known for its football team, which plays in the Primera División, the first tier of the Argentine football league system.
 San Lorenzo is also considered one of the "big five" (""Los 5 Grandes"") of Argentine football by Argentine press, with Independiente, River Plate, Boca Juniors, and Racing Club.
The 2013 O'Higgins F.C. season is O'Higgins F.C.'s 50th season in the Primera División and their seventh consecutive season in Primera División.
 The club plays in two tournaments: The 2013 Primera División de Chile season and the Copa Chile.
Club Atlético Boca Juniors (] ) is an Argentine sports club based in the La Boca neighbourhood of Buenos Aires.
 Although many activities are hosted by the club, Boca Juniors is mostly known for its professional football team which, since it was promoted in 1913, has always played in the Argentine Primera División, becoming the most successful team of Argentina in number of official titles, with 66 won to date.
 National titles won by Boca Juniors include 32 Primera División championships, and 12 domestic cups.
 Boca Juniors also owns an honorary title awarded by the Argentine Football Association for their successful tour of Europe in 1925.
Club Angels of Puebla was a football team that played in Mexican Primera División and in Primera División A, it had its home in the city of Puebla de Zaragoza in Mexico.
 The team was founded in the years 1984–85 after the purchase of the Club de Fútbol Oaxtepec franchise.
 This team did not have any success, but it was always provided with the support of the people.
 It was a hardened team that strained to a great extent in its stay in the Mexican Primera División.
 After the 1989–90 season, the franchise was sold and transferred to Torreón and was made into Santos.
The club made a brief come back in 1999 which ended in 2001.
Primera División A "(Méxican First A Division)" Clausura 2008 is a Méxican football tournament – one of two tournaments held in one year.
 It began Friday, January 11, 2008.
 Reigning champions Indios could not defend their title, as Club León wins their 3rd title in Primera División A, and earned the right to battle Indios in a two-leg aggregate to try to earn promotion to the Primera División de México.
 In the 1st leg, which was played at Estadio Olímpico Benito Juárez, Indios defeated León by a score of 1–0.
 In the 2nd leg at Estadio León resulted in a 2–2 tie, hence earning Indios a spot into the Primera División.
Club Centro Deportivo Municipal, commonly known as Deportivo Municipal, is a Peruvian football club based in Lima, Peru.
 They are among Peru's most recognizable clubs and enjoy considerable popularity.
 The bulk of their success was won a few years after the club was founded in 1935.
 The club was a top-flight contender during this period and won four Primera División titles.
 The club suffered relegation three times in their history: 1967, 2000, and 2007.
 They have also been champions of the Segunda División on three occasions: 1968, 2006, and 2014, granting them promotion to the first division.
 In 2014, they won the Segunda División and they currently compete in the Primera División Peruana.
Axel Juárez (born 27 July 1990) is an Argentine footballer who plays for Defensa y Justicia as a midfielder.
 He made his senior debut in Primera División for San Lorenzo on May 18, 2009, when he came on as a substitute in the first half against Gimnasia Jujuy.
Club Atlético Lanús (] ) is an Argentine sports club from the Lanús district of Greater Buenos Aires.
 Founded on 3 January 1915, the club's main sports are football and basketball.
 In both sports, Lanús plays in Argentina's top divisions: Primera División (football) and Liga Nacional de Básquet (basketball).
 In football, Lanús has won six major championships in its history: the 1996 Copa CONMEBOL (the predecessor of the current Copa Sudamericana), the 2007 Apertura, the 2013 Copa Sudamericana, the 2016 Argentine Primera División, the 2016 Bicentenario national cup and the 2017 Supercopa Argentina.

Question:  Axel Juárez made his senior debut in Primera División for a sports club based in the Boedo district of where?
Answer: Buenos Aires