In the past, Kate has been cautious and measured in her interviews and public exchanges, but when she was interviewed for the BBC TV show Sue Barker: Our Wimbledon earlier this year, tennis-mad Kate revealed that her mum, Carole Middleton, has a crush on tennis superstar Roger Federer. She laughed: "Roger is my mother's heartthrob. I don't think she will mind me saying that! I think he probably knows that too." Kate was on a roll and also recounted an embarrassing incident with her dad, Michael: "My father is not going to appreciate this but we were walking past Tim Henman and we had just seen Sampras play. My dad said very coolly, 'Hi Pete.' I was mortified!"