By Simon Cambers NEW HAVEN, Connecticut (Reuters) - Former double U.S. Open champion Venus Williams has withdrawn from the final grand slam of the year after failing to recover from a wrist injury.

By Simon Cambers NEW HAVEN, Connecticut (Reuters) - Former double U.S. Open champion Venus Williams has withdrawn from the final grand slam of the year after failing to recover from a wrist injury.

By Alastair Himmer BEIJING (Reuters) - Maria Sharapova feared serious injury after a mystery chest problem forced her to quit her China Open semi-final with fellow Russian Maria Kirilenko on Saturday.

By Alastair Himmer BEIJING (Reuters) - World number one Maria Sharapova retired injured during her China Open semi-final against fellow Russian Maria Kirilenko on Saturday, completing a miserable week for tournament organisers.