What horrors grow within? Credit: Eyeem / Getty Images It takes a lot of grime for a reusable water bottle to look dirty. After all, it's usually just water in there. Bad news, though: If you're ...

Tennis star Novak Djokovic greeted fans wearing a helmet on Saturday morning (11 May) after he was hit on the head by a water bottle. The 36-year-old saw the funny side of the incident which ...