Russian tennis star Maria Sharapova turns a year older today. The four-time Grand Slam winner is known for her style and diversity in fashion. Today, we take a look at some of her coolest and most stylish pictures on Instagram

Birthday special: Maria Sharapova's coolest pics on Instagram Russian tennis star Maria Sharapova turns a year older today. She is known for her style and diversity in fashion. Today, we take a look at some of her coolest and most stylish pictures on Instagram.