Serena Williams said the chance to play in front of her children was the driving force behind her sensational return to tennis, as the American legend played down a potential singles comeback.

Four years after appearing to end her glittering career, Williams on Monday announced that she will come out of retirement in the doubles tournament at Queen¡¯s Club in west London.

The 44-year-old¡¯s shock return has captured the imagination of the sporting world.