She's Britain's girl next door whose dad used to bathe her in the kitchen sink.

At first glance, tennis stars Serena Williams and Heather Watson couldn't be more different. But later today the pair will go head-to-head as they face each other for the first time, in a third-round clash at Wimbledon.
It's only the second time Watson, 23, a relative unknown, has reached this stage of the tournament, while her American opponent, 33, is ranked world No 1 and has won Wimbledon five times. It's less Clash of the Titans, more David versus Goliath.