Serena survives semi scare

Serena Williams fought back from the brink of a shock defeat to stay on course for a third Wimbledon title with victory over Elena Dementieva in the longest women’s semi-final in history.

The 27-year-old American was forced to produce all her battling qualities to overcome a spirited Dementieva, who produced a brilliant performance but still bowed out at the last-four stage for the second year in a row.