Rubuta ci gaba ga wannan sakin layi - A 2013 Hopman Cup
, kuma yana wasa don Amurka (tare da John Isner), roba ta farko ita ce Afirka ta Kudu. Williams ta doke Chanelle Scheepers kuma, tare da John Isner, sun yi nasara da 'yan Afirka ta Kudu Chanelle Scheepers da Kevin Anderson. A wasan roba na biyu da Amurka ta yi da Faransa, ta lashe duka wasan nata guda biyu kuma a cikin gauraye biyu ta doke Jo-Wilfried Tsonga da Mathilde Johansson. Ta gaba ta fuskanci Anabel Medina Garrigues na Spain kuma ta ci nasara a cikin saiti biyu.