Jamie Murray kept the family interest in Wimbledon alive as he and Australian Casey Dellacqua reached the quarter-finals of the mixed doubles.

After brother Andy saw his men's singles title defence halted by Grigor Dimitrov on Wednesday, it fell to Jamie to return to Centre Court and help to deliver a British victory.

Murray, 28, partnered Jelena Jankovic to the Wimbledon mixed title in 2007 and moved two steps away from another final as he and Dellacqua beat Indian Sania Mirza and Romanian Horia Tecau 7-5 6-3.

Dellacqua is also targeting her second mixed doubles grand slam title, having combined with Scott Lipsky to triumph at the 2011 French Open.

They go on to face Max Mirnyi of Belarus and Chinese Taipei's Chan Hao-ching on Friday.

Murray was not the only British winner in the mixed doubles, as the home-grown duo of Naomi Broady and Neal Skupski also reached the last eight, coming from behind to win 4-6 6-3 6-4 against Romanian Florin Mergea and Ukrainian Elina Svitolina.

Their next opponents will be Pakistan's Aisam Qureshi and Russian Vera Dushevina.

Murray was delighted to stay in contention and keep the family hopes of a trophy going this fortnight.

"I guess it's that way. At least someone's still playing and the family can still get out and support," Murray said.

"For my benefit it's good isn't it."

Looking ahead to tackling his former men's doubles partner Mirnyi, whose physique has seen him nicknamed 'The Beast', Murray added: "It'll be a tough match. He's been a great player for a long time and a really good mixed player as well.

"Any team in the quarter-finals is going to be difficult but we showed we can beat a tough team so I don't see why we can't win again.

"We need to win a few more matches, but I'm looking forward to it. What more can we ask for? We're both enjoying being out there and playing."

Asked if Andy might come to Wimbledon to see him in action later in the tournament, Murray said: "I don't know.

"I'd bet against it. We'll see. Maybe if we keep winning and we're here on the weekend."

Dellacqua added, with a laugh: "I would be so nervous."

This is just Murray and Dellacqua's second tournament as a pairing and comes after they lost in the first round in the French Open.

Dellacqua said: "It's great playing with a Murray in England because you get a lot of support. I've had two opportunities this year to play on Centre Court.

"For me it's a massive thrill. I just do my thing and Jamie does the rest."

It was revealed by Dellacqua that Murray left her with little choice but to take him on as a mixed partner, after she broached the issue with his men's doubles partner John Peers, a fellow Australian.

She said: "I was putting my feelers out. I asked Jamie's doubles partner John if he knew anyone that was looking, and Jamie said, 'What about me?'.

"He kind of put me on the spot and I couldn't really say no. It wasn't like I had time to think about it.

"At this stage of my career I just want to play with someone who allows me to enjoy it. I don't want to feel massive stress. It helps to speak with someone who speaks English or Scottish or whatever so you can understand and enjoy it."