Mark Cavendish opens up about his baby son's birthday and his dramatic crash in Rio

Mark won a silver medal in the omnium at Rio 2016.

Mark and Peta have been married since October 2013 and have two children together.

Mark and his family flew back into the UK on Wednesday.

Mark Cavendish with wife Peta and their son Frey.

Mark also opened up about his dramatic crash in Rio, when he collided with South Korea's Sanghoon Park during the final event of the omnium.