Tennis star Serena Williams and her fiancé Alexis Ohanian have welcomed a baby girl. this is the couples first child, coming into the world reportedly weighing six pounds and thirteen ounces. The couple has yet to confirm the news but Serena's coach Patrick Mouratoglou, tweeted: "Congratulations Serena for your baby girl am so happy for you and I feel your emotion." Beyonce took to social media as well by posting on Instagram to congratulate the couple.