Laura Kenny retires at 31 from cycling as Britain's most successful female Olympic athlete with 5 golds
"It's been in my head a little while, the sacrifices of leaving the children and your family at home is really quite big and it really is a big decision to make," Kenny said. "More and more, I was struggling to do that. More people asking me what races was I doing, what training camps was I going on - I didn't want to go ultimately and that's what it came down to."