Coronation Street star Tina O'Brien has warned of more tensions ahead for Sarah and Carla Barlow as they fall out over Peter. Sarah was recently concerned to discover that her husband Adam (Samuel Robertson) is considering becoming a living liver donor for his uncle Peter, who needs a life-saving transplant. In this week's 9pm episodes, Adam breaks the news to Peter (Chris Gascoyne) and Carla (Alison King) that he has changed his mind. Carla is furious when she finds out that Sarah's influence is to blame for Adam's change of heart, leading to a fresh round of tension between them.