Ixhamara Martinez, 4, remains in pediatric ICU at University Hospital after her family was in a head-on crash Sunday with an alleged drunken driver.
San Antonio police said 26-year-old Oscar Omar Rodriguez (pictured) has been charged with DWI and intoxication assault.
Her mother, Juana Martinez, and Favian, her 6-year-old brother, also were injured, but they're now out of the hospital, according Beatrice Gomez, a family friend.
"We don't know if the little girl is going to make it. We're just going to keep on praying," Gomez said.
She said the child had suffered a head injury and was unresponsive, but was breathing somewhat easier.
Although San Antonio Police said the little girl was not restrained in the vehicle, Beatrice Gomez said the mother told her both children were secured in their booster seats in the back seat.
She said it appeared the children were broken free by the impact.
It is not known whether Rodriguez had been to any Fiesta events prior to the wreck.
Gomez said anyone drinking should "just stay home."
But Sgt. Javier Salazar, San Antonio police spokesman, said the public can enjoy Fiesta responsibly.
"That includes controlling your drinking," Salazar said.
He also said urges Fiesta-goers to get a designated driver or call a taxicab.
The weekend going into Fiesta saw numerous drunken driving arrests being charged in Magistrate's Court, many with prior DWI charges.
Among them was a suspect with five prior DWI arrests who led police on a chase Sunday.
Then overnight Monday, police said alcohol was suspected in an SUV flipping over on West Commerce.
Salazar said drunken driving is a year-round concern.
He said, "We devote a large number of resources, a large number of officers to combat this problem."