An unidentified 39-year-old woman entered the Los Angeles County home where Montana and his wife were staying on Saturday at around 5 p.m. using an unlocked door, law enforcement sources told TMZ Sports.
At that point, the suspect allegedly saw a woman holding a baby, grabbed the child and walked to a different part of the house.
According to the report, Montana and his wife confronted the woman and wrestled the baby away from her. She fled the scene but was captured by police, who happened to be in the area for an unrelated matter, just a few blocks away.
She has since been charged with kidnapping and burglary, TMZ Sports reported.
Montana, 64, played 13 years for the San Francisco 49ers and led them to four Super Bowl championships. He then left the 49ers to play for the Kansas City Chiefs for two seasons. He got the Chiefs as far as the conference championship during the 1993 season and to the AFC Wild Card in the 1994 season, but never to the Super Bowl.
Fox News Ryan Gaydos contributed to this report.