How good is tennis for your health?

With just 10 days until the beginning of the oldest and biggest tournament in the tennis calender - Wimbleton - many people will be dusting off their racquets dreaming of being the next Andy Murray. While that may be wishful thinking as a career option, researchers at Liverpool Hope University suggest it would be a very good thought in terms of helping people age more healthily. The university has launched a new study into this very subject, along with the help from some tennis legends. I went along to see what they were serving...