Cardi B's NFL star boyfriend Stefon Diggs hit with paternity suit by model... a day after their pregnancy news

NFL wide receiver Stefon Diggs has been hit with a paternity suit by an Instagram model, with the court battle being publicized one day after his girlfriend, Grammy-winning rapper Cardi B, announced she was pregnant with their child. 

Aileen Lopera, known as Lord Gisselle on social media, filed a petition to determine if Diggs was her infant daughter's father in Los Angeles last December. 

Lopera was pregnant when she made the court filing, and listed Diggs as the 'parent' of her yet-to-be-born daughter, Charliee Harper Diggs-Lopera, who was born on April 2, per the US Sun. 

In July, Diggs responded to the suit, stating he was unsure if the child was his, despite Lopera giving her daughter both of their last names. 

Diggs claimed that he is proven to be the father of Charliee, he wants joint legal and physical custody of her. 

Lopera has requested sole custody, while allowing Diggs visitation with his daughter. 

Also as part of the court filing, Lopera has requested Diggs cover all of her pregnancy and birth expenses in addition to her attorney's fees. 

Lopera has more than 300,000 followers on Instagram, while Diggs signed a 3-year, $69million contract with the New England Patriots in March, with $26million guaranteed. 

Cardi B announced she was pregnant with Diggs' child on Wednesday during an interview with 'CBS Mornings', with her due date coming before her next tour starts in February. 

Diggs, 31, has a daughter, 8-year-old Nova, from another relationship, while Cardi B has three kids with rapper ex-boyfriend Offset - Kulture, 7, Wave, 3, and 1-year-old Blossom. 

Cardi B, 32, filed for divorced from Offset last summer, with her first being romantically linked to Diggs months later. 

The couple hard-launched their relationship in May at the Met Gala in New York City, and sat courtside at a Knicks game a few days later.