Adrian Grenier and Shia LaBeouf’s Love Triangle?

Could Shia LaBeouf be a homewrecker?

Only weeks after the Transformers star crashed his truck, his passenger—actress Isabel Lucas—was dumped by her boyfriend.

Entourage hottie Adrian Grenier broke up with Lucas, reportedly because he was jealous of her growing friendship with LaBeouf, her Transformers 2 costar.

Apparently, the crash was the final straw.

“It wasn’t working out,” a source told People magazine. “Adrian saw her with Shia and that was kind of it – the crash, their hanging out.”

Added the source: “[Adrian] obviously didn’t appreciate it.”

Lucas was not injured in the crash, while LaBeouf underwent four hours of surgery to repair his crushed left hand.

Asked about the rumored breakup, Grenier’s rep told CelebTV.com she does not comment on her clients’ personal lives.

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Isabel Lucas: Shia LaBeouf is recovering well

Actress says they're both fine after crash

Isabel Lucas has spoken out about the car crash she was in with co-star Shia LaBeouf.

The actress, 23, was getting a lift home with the actor last month when his car smashed into an oncoming vehicle and flipped over twice.

But she says his hand, which was severely damaged, is on the mend.

‘We're both fine, and Shia's fine as well,’ she tells Access Hollywood. ‘His hand is healing well.’

It is thought the injury will be written into the script of Transformers 2.

Shia, 22, was arrested for suspected drink driving shortly after the incident.

But the other driver was apparently to blame for ignoring a red light.

Shia's rep says reports he needs to have his finger amputated are false.

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