With two days to go, Britain's beleaguered tennis players have high hopes of emerging from Wimbledon with a title.

Tim Henman attacked what he called the "culture of mediocrity" after no Briton reached the third round of the singles and LTA chief executive Roger Draper threatened to withdraw funding from under-achieving British players.

However, Sheffield's Anna Fitzpatrick will aim to become Britain's first junior Wimbledon finalist for 23 years and Davis Cup pair Jamie Murray and Alex Bogdanovic are on course to meet in the semi-finals of the mixed doubles.

Murray, who is doing his best to help to make up for the absence at the All England Club of his injured younger brother Andy, bowed out of the men's doubles but - with makeshift partner Jelena Jankovic - reached the quarter-finals of the mixed event.

Murray and Jankovic, the world number three, followed up their shock second-round win over third seeds Mark Knowles and Zi Yan with a 6-3 7-6 (7-1) win over 14th seeds Julian Knowle, of Austria, and Tiantian Sun, of China.

"It's a chance to win a grand-slam title and I don't see why not," said Murray. "I don't think there are any real favourites.

"We beat the number three seeds. That's good work, isn't it? I don't see why, if we kicked them out, we can't progress further."

The Scottish-Serbian pair will today meet ninth seeds Marcin Matkowski, of Poland, and Cara Black, of Zimbabwe, for a place in the semi-final, where they could meet Bogdanovic and Melanie South.

The all-British pair, who knocked out top seeds Mike Bryan and Lisa Raymond in the second round, play their quarter-final against Rogier Wassen and Jun-Jang Chan.

Murray's title prospects actually increased after his defeat in the men's doubles enabled him to concentrate on one event.

He and American partner Eric Butorac went out in the third round to Czech Republic duo Lukas Dlouhy and Pavel Vizner, the French Open runners-up who won 7-6 (7-5) 6-3 3-6 6-2.

Fitzpatrick, meanwhile, won two matches in one day to reach the semi-finals of the girls junior event.

The 18-year-old, who trains seven weeks of the year in Monte Carlo, defeated Gail Brodsky, of the United States, 6-2 7-5 to reach the last four to surpass the feat of Kent's Naomi Cavaday who got as far as the quarter-finals last year.

Fitzpatrick has become Britain's first semi-finalist since Elena Baltacha and Anne Keothavong in 2001 and is aiming to emulate Annabel Croft, who was Britain's last Wimbledon junior champion in 1984.

"I knew I could get a long way in the tournament so it's not a huge surprise to me," she said.