Former Tennis Star Arrested Over Brutal Halloween Attack

Former tennis star Justin Gimelstob has reportedly been arrested over the brutal Halloween night attack on venture capitalist Randall Kaplan.

Gimelstob, 41, is accused of attacking his former friend in West Los Angeles on October 31, reports.

He allegedly struck him from behind that left "large contusions and bruises" to Kaplan's face.

He surrendered himself to police and was booked on a felony battery charge, the LAPD confirmed to the Times, and was released on US $50,000 (AU$69,000) bail.

Kaplan alleged that Gimelstob struck him 50 times in an incident witnessed by his wife, two-year-old daughter and another person, while the former World No. 63 was dressed as a character from Top Gun.

In a statement, Kaplan wrote that the assailant yelled he was going to kill him, and left him with a possible concussion.

He said Gimelstob had previously threatened him because he was friends with his estranged wife Cary, and that his family is now terrified the tennis coach and commentator will show up at their home.

"I am afraid for my life," Kaplan wrote, according to the L.A. Times.

Gimelstob's lawyer said there was "another side to this story" and that his client will "vigorously defend himself against these claims".

“To that end, Justin has been and will continue to be cooperative with law enforcement," his lawyer Shawn Holley said.

Cary Gimelstob filed a domestic violence restraining order against her estranged husband in 2016, alleging that he "physically assaulted, harassed, verbally attacked and stole" from her.

Gimelstob denied the accusations.

Lead photo: Getty.