Philadelphia 76ers player J.J. Redick claims he saw a caged woman hidden under a blanket in the trunk of a car service he was using in New York.

The 34-year-old NBA star says he 'freaked out' and called police on Wednesday to report the alleged incident.

Redick, who said he was with his wife Chelsea and her twin sister Kylee at the time, shared details of the bizarre story on his 'The J.J. Redick Podcast' on Thursday.

He said he had just finished up a photo shoot in Manhattan for a men's lifestyle website, MrPorter.com, when the company arranged for a car to pick up him, his wife and his sister-in-law.

Philadelphia 76ers player J.J. Redick claims he saw a caged woman hidden under a blanket in the trunk of a car service he was using in New York on Wednesday with his wife Chelsea (above) and her twin sister Kylee

Redick said he noticed a strange smell when the driver went to put his bags in the back of the Escalade but didn't think anything of it.

As they drove through the city, he claims his sister-in-law was 'pale as a ghost' when she tapped him on the shoulder and whispered there was a 'person in the back of the car'.

Redick said he turned and spotted a large blanket that was moving as it covered what appeared to be a box or cage. He said he immediately asked the driver to stop and told him there might be something in the back.

The athlete claims the driver lifted the blanket slightly to inspect before saying there was nothing there and then closing the trunk.

'As he's like walking around to the front seat, a head pops up. There's a back of a female's head. She's got blond hair, there's a ponytail, and based on the size of the box or cage that this person is in, it's like either, like a very small human, or a child,' he said.

Redick claims he told the driver to stop in Manhattan's Financial District (above) after they allegedly spotted what appeared to be a woman in the trunk of the car

Redick said he reported the incident to the NYPD and the car service. He said the driver denied having anything in his car and sped off, leaving them on the sidewalk

Redick claims the driver sped off before they started questioning if maybe it was just a dog with a fluffy tail. He said Kylee was adamant it was a woman.

'She's like, 'No. The reason I said there was a person is because I saw movement in my peripheral - out of my right eye. So I turned around, and the blanket was moving. So when I looked back, like half of a human face came out of the blanket. I saw a woman's eyes, woman's face, woman's blond hair'.'

He said he called the NYPD but hasn't heard back from them yet.

Redick also said he called the car service who responded via email saying the driver had been suspended for having someone in the front seat during their trip. He said they made no mention of a woman in the trunk, even though he says he explicitly told them.

DailyMail.com has contacted the NYPD for clarification.