Tennis: Williams sisters sued

Tennis sisters Venus and Serena Williams have been sued for allegedly backing out of a match against John and Patrick McEnroe that was to be billed as the ‘‘Battle of the Sexes II.’’

The suit, by a non-operating Website called Women’s Sports Zone, estimated potential profits from the exhibition at £31.5m (€51.5m). The company could not get started without those funds, lawyer Abbey Kaplan said.