SEMIFINAL LINEUP Federer vs. Haas / Murray vs. Roddick LONDON – Andy Murray spared his nearest and dearest another traumatic day out at Wimbledon as he made serene progress to join Roger Federer in the semifinals of the grasscourt championships on Wednesday. Two days after putting his mother, girlfriend, 15,000 Center Court fans and millions of British television viewers through the wringer with his electrifying five-set win against Stanislas Wawrinka, Murray produced a no-nonsense 7-5, 6-3, 6-2 win over Juan Carlos Ferrero. While the authoritative exhibition on a roasting Center Court gave Murray a place in the last four at Wimbledon for the first time, the sight of all-conquering Federer at the tail-end of a Grand Slam is taken for granted these days. The world number two reached his 21st successive major semi by dousing the fireworks of Croatian ace machine Ivo Karlovic 6-3, 7-5, 7-6. “Twenty one in row, it's amazing. Means the world to me. It's been quite a streak and I'm happy it's still alive,” said Federer, in hot pursuit of a record 15th major trophy. Federer's win may not have raised any eyebrows but Tommy Haas's 7-5, 7-6, 4-6, 6-3 victory over fourth seed Novak Djokovic certainly provided the biggest shock of the men's tournament. At 31, Haas was the oldest man in the last eight but he buzzed around Court One and stung Djokovic with a string of winners to reach the last four at Wimbledon for the first time. He now faces Federer, the man he came so close to beating at the French Open last month. “There is not much this guy cannot do,” Haas said. “I am going to try and go out there and see if I can annoy him a little bit and go from there.” Djokovic did not think Haas was facing mission impossible, saying: “I think he's a perfect player for this surface.” On a day when Federer, Andy Roddick, Lleyton Hewitt, Djokovic and Ferrero – who between them own 19 Grand Slam titles – were also out to claim last four spots, it was Murray who was again grabbing all the attention before he had stepped on court. So desperate were some fans to see Murray end Britain's 73-year wait for a men's singles champion, they joined the queue to buy tickets for the quarterfinal action within minutes of the Scot's captivating late-night win over Wawrinka. Murray's mother, Judy, described watching her son's tussle against Wawrinka as “a cross between seasickness and having a heart attack” and the third seed made sure there was no need to call in a doctor on Wednesday. “It's tough to recover from back-to-back five-set matches. But I was only on for about an hour and a half, and I should be a hundred percent for the next match,” the 22-year-old said. In 101 unflustered minutes, he tossed out the Spanish wildcard and is now primed to take on the tougher challenges that lie ahead. None of those will be bigger than Federer should the two meet in Sunday's final. But before that he has to handle Roddick. The 26-year-old pelted Hewitt with 43 aces and spent almost four hours trying to shake off the Australian terrier before eventually extricating himself long enough to claim a 6-3, 6-7, 7-6, 4-6, 6-4 victory. The five-time Wimbledon champion Federer has come a long way from the teenager who had stepped on Center Court for the first time in 2001 to face Pete Sampras. So intimidated was Federer by the surroundings, his hands went cold, his pulse raced and his head was spinning. It was an experience that hit Karlovic as soon as he walked out for his first grand slam quarterfinal. Until Wednesday, Karlovic had not been broken once in any of 79 service games at this year's tournament and had sent down an eye-watering 137 aces. Such stats would strike fear into most players but Federer is no ordinary opponent and it took him just 11 minutes to blunt the 2.08m tall player's key weapon. Williams' double act Venus and Serena Williams warmed up for Thursday's Wimbledon singles semifinals by reaching the last four in the doubles. The sisters underlined their dominance in the women's game with a 6-2, 7-5 victory over Germany's Anna-Lena Groenefeld and America's Vania King on Wednesday. Other results: Cara Black of Zimbabwe and America's Liezel Huber bt Spain's Nuria Llagostera Vives and Maria Jose Martinez Sanchez 4-6, 6-3, 6-0; Spain's Anabel Medina Garrigues and Virginia Ruano Pascual beat Russia's Alisa Kleybanova and Ekaterina Makarova 6-4, 7-5. Australian Samantha Stosur and Rennae Stubbs beat Germany's Kristina Barrois and Italy's Tathiana Garbin 1-6, 6-3, 6