Steffi Graf's Brother Reportedly Living in Las Vegas Tunnels, Accuses Andre Agassi of Assault

Michael Graf, the brother of tennis legend Steffi Graf, is reportedly living in the storm tunnels beneath Las Vegas while an arrest warrant remains active in Nevada.

Graf, 55, has appeared in a series of videos posted to his Facebook page, seemingly filmed within the tunnels, where he makes unsubstantiated accusations against his brother-in-law, former tennis star Andre Agassi.

In the videos, Graf can be seen with disheveled hair, speaking incoherently at times, with a backdrop of graffiti. In some segments, he alleges that Agassi physically assaulted him.

"I truly believe that Andre enjoyed hitting me as hard as he could. I truly believe he liked it," Graf states in one video. He further claims, "I mean, I really gave him a good whack. It was like... a real pirate move."

These allegations have not been corroborated, and representatives for Agassi have been contacted for comment. Meanwhile, Steffi Graf and Agassi, who have lived in Las Vegas for decades, appear to maintain a picture-perfect life. Agassi recently posted a video of himself and Steffi playing tennis, captioned: "How lovely to dream while you're awake."

The tunnels beneath Las Vegas, originally designed as a flood control system, have become a refuge for homeless individuals. Estimates suggest over 1,000 people live within the approximately 480-kilometer network.

The precise duration of Michael Graf's residency in the tunnels is unclear. He was previously reported to be living in a tent near Lake Mead before his belongings appeared to be stored in a shopping cart within the tunnels.

Court documents reveal that a bench warrant was issued for Graf's arrest in Nevada for violating court conditions related to a misdemeanor trespass charge. He had been issued a no-contact order and instructed to avoid further legal issues.

According to the Boulder City Police Department, Graf was arrested on February 12, 2026, for driving under the influence, with an open alcoholic container found in his vehicle. This arrest violated his existing order.

A bench warrant was subsequently issued on March 26, 2026, after he failed to appear for a status check regarding the violation, and it remains active.

This incident marks the latest in a series of legal troubles for Michael Graf. He was arrested for violent offenses in Las Vegas in 2020. At that time, Steffi Graf reportedly supported him by purchasing a house, financing legal fees, and seeking guardianship.

He reportedly moved out of the house he was living in after his second marriage ended earlier this year, adopting a nomadic lifestyle. Claims suggest his camp burned down in August, followed by a car crash in September.

Steffi Graf spoke about her family's relocation to Las Vegas in a 2014 interview, citing the strong family connection with Agassi, who was born and raised there. "And then very shortly after my mum moved to Las Vegas, and then my brother and his four kids, so we have all the family there," she stated. "All the cousins are together and growing up together - it's pretty neat."

In a 2008 interview with Tennis Magazine, Graf expressed uncertainty about where she would live after her playing career. "I literally had no idea where I was going to live," she said. "I just felt that I've been able to see so much of the world that I wanted to explore that more. Now living with two kids, and another great thing is my mom lives here, and so does my brother with his four kids. Andre, you know, [was] born and raised here, so we have such a tight-knit family and friend circuit. I feel very blessed."

Recently, Andre Agassi shared insights into his marriage and family life in Las Vegas with Hello! magazine, discussing his involvement in the Laver Cup.

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