Adrian Grenier and Isabel Lucas by Polk Imaging/ Adrian Grenier and Isabel Lucas by Polk Imaging/
Transformers star

Shia LaBeouf's recent car accident may have damaged more than his hand. His costar and

passenger in the accident, Isabel Lucas, has split from Entourage's Adrian Grenier. The pair is said to have broken up soon after the after accident. "It wasn't working out," a source told "Adrian saw her with Shia and that was kind of it - the crash, their hanging out." Lucas, 22, had reportedly been dating Grenier, 32, for several months. While LaBeouf underwent hand surgery for injuries related to the car accident, Lucas was treated for bumps and bruises and then released from the hospital. The only good news (ladies, take note) is that now Grenier's back on the market, just in time for a new season of Entourage. - Anna Dimond Related: " Shia LaBeouf "Healing Well" After Accident and Surgery " Shia LaBeouf Not to Blame for Accident