Cardiff almost pulled off the shock of the round after Gwennan Harries had shot them into a 65th-minute lead.
Leeds snatched a last-minute equaliser through Nicole Emmanuel, and it was four minutes into stoppage time when Smith hit the winner.
Cardiff almost pulled off the shock of the round after Gwennan Harries had shot them into a 65th-minute lead.
Leeds snatched a last-minute equaliser through Nicole Emmanuel, and it was four minutes into stoppage time when Smith hit the winner.
