Melbourne, Australia (SportsNetwork.com) - World No. 1 Serena Williams and former top-ranked star Venus Williams secured berths in the quarterfinals at the 2015 Australian Open. Serena dropped the first set before rallying to top rising 24th-seeded Spaniard Garbine Muguruza 2-6, 6-3, 6-2 in two hours at Melbourne Park. Muguruza stunned Serena at the French Open last year, handing the American, who won just four games in that match in Paris, the worst loss of her Grand Slam career in the process. The 33-year-old American great blitzed her 21-year-old opponent with 17 aces and won 38 of 49 first-serve points on Monday. It was a great match -- congratulations to Garbine, she played so well, Serena said. The 18-time Grand Slam champion and reigning U.S. Open titlist owns five Aussie Open titles, but none since 2010. Her quarterfinal opponent will be 11th-seeded Slovak Dominika Cibulkova, who doused on-the-mend Belarusian star Victoria Azarenka, 6-2, 3-6, 6-3. Azarenka led 2-0 in the third set, but couldnt hold on against the diminutive Cibulkova. Today I wasnt thinking about the score, I was just going for it, Cibulkova said. And when I was up, I was going for it even more. I always have tough matches with Vika. The tennis she plays goes well with mine, Cibulkova added. Cibulkova was last years Aussie runner-up to since-retired Chinese star Li Na. The former world No. 1 Azarenka is a two-time Aussie Open champ and two-time U.S. Open runner-up. Her 2014 season was interrupted by a foot injury and shes been trying to re-locate her game since last spring. In other fourth round action on Day 8 of the fortnight, an 18th-seeded Venus remained undefeated in 2015 by surprising sixth-seeded former Wimbledon runner-up Agnieszka Radwanska 6-3, 2-6, 6-1 and rising Madison Keys vanquished fellow American Madison Brengle 6-2, 6-4. Brengle reached her first-ever WTA final in Hobart two weeks ago. Venus will clash with the 19-year-old Keys in an all-American quarterfinal on Wednesday. Venus is a seven-time Grand Slam champion who was the 2003 Aussie runner-up to her younger sister. Shes a perfect 9-0 this year, including a title in Auckland three weeks back. The 34-year-old Venus was asked what her inspiration has been to keep plugging away all these years. Definitely my sister Serena, she replied. Shes just the ultimate champion. She definitely gives me a lot of inspiration. And of course all of my fans, whove always stayed behind me. Keys will play in her first-ever Grand Slam quarterfinal when she faces Venus. It feels really good, she said. My mom texted me before the tournament. She said, Its your last Grand Slam as a teenager, and sent me a bunch of grandma faces. Im like, Thanks for reminding me mom! Thank you. Love you. But its huge. Its my last Slam as a teenager. I hope I can keep it up. The quarterfinals will get underway Tuesday, as second-seeded former No. 1 Maria Sharapova will battle seventh-seeded Wimbledon runner-up Eugenie Bouchard and third-seeded French Open finalist Simona Halep will take on consistent 10th-seeded Russian left-hander Ekaterina Makarova. Sharapova is 3-0 all-time against the Canadian Bouchard, including some French Open match wins in 2013 and last year, while Halep is 1-0 lifetime versus Makarova. The reigning French Open champion Sharapova was the Aussie champ in 2008 and runner-up in 2007 and 2012. Doug Williams Youth Jersey . At a news conference Tuesday where it was thought that the fiery Schallibaum may be shown the door after a dismal finish to the Major League Soccer season, team president Joey Saputo said no decision has been made on whether the Swiss Volcano will be back in 2014. 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Garbutt delivered a high hit to Penner in the second period of Sundays game.LAS VEGAS - Lucas "Bebe" Nogueira, the Raptors other young Brazilian prospect, prefaces each conversation he has using the same disclaimer. "My English is not so good," hell tell you, before speaking nearly perfect English for as long as youre willing and able to listen. All eyes have been on his intriguing countryman, Bruno Caboclo, here in Las Vegas for the NBAs Summer League but unlike his quiet 18-year-old teammate, Nogueira is not the least bit shy. The only thing bigger than his personality is his hair. The Raptors acquired the seven-foot centre from Atlanta last month, a year after he was selected with the 16th overall pick and famously attempted to balance a Celtics hat on top of his trademark afro. Hair aside, what should you know about him? Nogueira has you covered... "Im a happy guy, I like to smile," said the 21-year-old, appropriately wearing a big smirk across his face. "I think you should be happy everyday because you have just one life." It doesnt take long to pick up on Nogueiras unique spirit, its refreshing in the pressure cooker that is professional basketball. "Its contagious, infectious," coach Dwane Casey said of Nogueiras personality. "Hes sharp and witty, which is a good thing in this league because its such a frustration-filled league and it can get you down and you cant let it happen as a young kid. Youve got to learn, bounce back and get ready for the next play." Asked about his perspective and approach, things that have helped him stand out early in his Raptors tenure, Nogueira credits his upbringing. He grew up in Rio de Janeiro. He was adopted. His family has supported him and has taught him positive values. His siblings are much older, his brother is 38, his sister 40. Hes the youngest, hence the nickname, Bebe. "It started in Brazil," Nogueira said of the moniker, insisting he has no preference between that and his first name, Lucas. "My family, they called me Bebe. I grew up with Bebe all my life. I dont care [if you call me that] because everyone says it, my mom says it." Nogueira was in Atlanta when he was told he had been traded to the Raptors. Initially, he was shocked, then confused and a little upset. Why would the Hawks acquire his rights on draft night only to give up on him a year later, he wondered. Generally, it takes young players a few years to pick up on a reality Nogueira was becoming aware of before playing a single game. The NBA is a business. Seeking cap space, the Hawks were eager to shed the contract of Lou Williams and acquire John Salmons non-guaranteed deal. Nogueira, a player Masai Ujiri and the Raptors liked in the 2013 draft, was the sweetener. Although the Raptors expect to have Nogueira on the roster this coming season, theyre still working on a buyout agreement with his team in Spain, where he played last year and is still under contract. But Nogueira knows better than to get his hopes up after being welcomed to Atlanta a year ago. Hes hopeful but is wisely holding off on the celebration, despite all the messages hes received over Twitter, welcoming him to Toronto this past month. "We the north? No, you the north. Im not, yet," he joked. Eventually hell join the Raptors and, like Caboclo, the long seven-footer will become part of the contingency plan for a team with winning aspirations in the short-term and a keen eye on the future. Nogueira has been playing professionally since he was 15-years-old and has helped ease the transition for Caboclo both on and off the floor, relaying information to him in his native Portuguese.dddddddddddd "If you could transfer some of that youthful enthusiasm to Bruno, and hell get that, [it would be great]," Casey said. "Thats one thing we love about Lucas." The Raptors are happy to have him but - again, like Caboclo - theyre tempering immediate expectations, understanding that he still has a ways to go as a player. "I need to see more to really try to project [how good he can be]," Raptors assistant and Summer League head coach Jesse Mermuys said of Nogueira, who missed most of the teams mini-camp in Las Vegas nursing a minor calf injury. "Hes done some good things and hes had some bad games." Through three games in his second stint at Summer League - he played for the Hawks last year - Nogueira is averaging 6.0 points and 5.0 rebounds in 19.0 minutes per contest. His defensive instincts, while inconsistent, are promising and hes looked competent as a finisher in the pick-and-roll. "Hes going to have to come in and compete in training camp," Casey cautioned. "I dont see any reason why he couldnt [make the team]. It just depends on how much stronger he gets before October. Hes got a long period of time to do it. You cant teach his wingspan." Between he and Caboclo, the Raptors have over 15-feet of wingspan coming in, but the initial focus for both will be to put on muscle and get stronger. "Soon Ill look like Dwight Howard," Nogueira joked, speaking about the eclectic variety of eatery hell have at his disposal in Toronto. Even if he breaks camp with the Raptors, its unlikely that hell crack Caseys rotation in his rookie season but the sooner he develops, the better. Toronto could use a player with his upside as a rim protector. "I wish I could jump like that," Nogueira said while watching Clevelands No. 1 pick Andrew Wiggins play on Monday. He may not have Wiggins-like hops but hes no slouch. The centre averaged 1.6 blocks in just 16.6 minutes per game in the Spanish ACB league last year. "Hes got a long way to go," new teammate Kyle Lowry said. "And hes got a big fella in [Jonas Valanciunas], who hell get better with everyday in practice and get strong and they can learn from each other." Nogueira knows Valanciunas, having played against him at the 2011 FIBA Under-19 World Championship. The newest Raptor raved about JVs skill set but remembers trying to get under his skin. "Lucas may have gotten under his skin, but Jonas kicked his ass," a Raptors staffer joked. Nogueira was fifth in rebounds per game and second in blocks while Valanciunas was awarded MVP of that tournament. With Valanciunas gregarious personality and Nogueiras jovial nature, the Raptors locker room should be a lively one for years to come. Nogueira has spent just one day in Toronto, flying to Canada directly after learning about the trade before heading out West to work out with his new teammates. He hasnt had much time to process where his journey has taken him, and wont get ahead of himself before the next step becomes official, but the Raptors young Brazilian prospect continues to smile and look forward to what appears to be a promising future. "The NBA only has 450 jobs for seven billion [people]," he said after crunching the numbers in his head. "I have one job, so I dont have [a] reason to stay sad. I had bad moments in my life but everybody [has] bad moments so I think, okay, I can be sad sometimes but 95 percent [of the time] I want to be happy, because I feel blessed." ' ' '