Former Channel 4 horseracing pundit John McCririck…launched a claim against his former employers for age discrimination. Speaking on the first day of an employment tribunal, the 73-year-old insisted there was “nobody better around” to front coverage of the sport after being axed to make way for a new team led by Clare Balding this year…Channel 4 and TV production company IMG Media Limited deny their decision to axe him was motivated by age discrimination. But the former presenter said he had been the victim of a youth-obsessed culture…