Coco Gauff went by a different name when she first became a star in the tennis and she has now revealed the two stories why. At the age of 15, Gauff stunned the world of tennis by reaching the fourth round of Wimbledon – beating seven-time Grand Slam winner Venus Williams along the way. It saw her catapult to stardom, though at the time she went by the name ‘Cori’ instead of ‘Coco’. Cori is her birth name but she has explained why she now goes by Coco, because of her father. “My dad’s name is Corey,” she said. “And so I guess, you know, they didn’t want me to get my dad and me confused when my…