Un gancho al corazón

Production officially began on July 28, 2008.[5][6] To prepare for her role, Danna García received advice from several boxers like Jesús Martínez, Mariana Juárez and Ana María Torres.[4] On August 25, 2008, Canal de las Estrellas began airing Un gancho al corazón at 8:00 pm, replacing Las tontas no van al cielo. [4][7] The finale episode aired in Mexico on June 26, 2009,[8] with Hasta que el dinero nos separe replacing it.[9]

Univision aired Un gancho al corazón weekday nights at 7 pm central replacing Las tontas no van al cielo from Monday, June 22, 2009 to Friday, January 15, 2010. On Monday, January 18, 2010 Univision moved Un gancho al corazón at 3 pm central with En nombre del amor taking its timeslot at 7 pm central. The last episode was aired Monday, May 3, 2010 with Camaleones replacing it the next day Tuesday, May 4, 2010. Univision aired re-runs of Un gancho al corazón weekday overnights at 1 am/midnight central time replacing Inocente de ti since Wednesday, November 18, 2020.

Un gancho al corazón came out on DVD On October 5, 2010.[10]

Valentina López is a young professional boxer known as "La Monita". Roberto "Beto" Ochoa is her trainer and boyfriend, who puts her under pressure to train and win so he can get money for himself and his mother, Nieves. Nieves raised "Monita" because her own mother, Isabel, abandoned her.

In another place within the city is an enterprise called Sermeño Group, a realty enterprise owned by Mauricio Sermeño, an ex-car racer who wants to retire and have a family. Mauricio is engaged to Constanza, a selfish and rude woman. Mauricio is convinced that Constanza is the love of his life, even though her foul attitude and bad manners bother him. After a hand injury, "Monita" decides to find a different job in order to sustain her lazy boyfriend and her "mother-in-law". With the help of her best friends Estrella and Paula, she goes to an interview at Sermeño Group, and after an eventful day, is hired as a secretary. Mauricio is convinced that "Monita" is honest and warm hearted and is attracted to her personality. With each day they spend together, they begin to fall in love, but because they are both in relationships, they hide their feelings in order to not hurt their significant others, unaware of their actions and unequal disregard for their feelings.

Mauricio is sure he wants to have a family, so he adopts three orphans named Aldo, Luisa, and Danny. Mauricio's cousin, Jeronimo, and Constanza disapprove of his decision. They try to make Mauricio change his mind but he is adamant he wants the kids in his life and says he will not abandon them. The children like "Monita" because she is kind to them and treats them as if they were her own children. They all quickly establish a close friendship and this captivates Mauricio, seeing Valentina as a potential partner. Unlike Valentina, Constanza hates the children, and since she is not kind, the kids reciprocate her feelings toward them. Constanza, Jeronimo, and Óscar, an unloyal employee of Sermeño Group, join forces to split Mauricio, "Monita", and the kids apart.

Even though Valentina and Mauricio fall in love with each other, they do not act on their feelings. Beto starts to fight in lucha libre as "El Fantasma Vengador" in order to bring in income so that Valentina feels better about him. He and Constanza meet and have sex, later trying to keep it a secret from their significant others, especially after they realize that Mauricio and Valentina are in love with each other. They will do anything to keep them apart.

• Un gancho al corazón at IMDb
• Official website at esmas.com (in Spanish)