PERTH, Australia -- Two-time Wimbledon champion Petra Kvitova and Olympic gold medalist Jack Sock are the latest players confirmed to compete at the Hopman Cup in January, one of the key warm-up events for the Australian Open.Theyll join Roger Federer, who earlier this summer announced he would play in the exhibition event for the first time in 15 years.Kvitova, who helped lead the Czech Republic to victory in the 2012 Hopman Cup, will partner with Adam Pavlasek for the Czech team; Sock will represent the United States alongside Coco Vandeweghe, whos making her debut in the mixed-team event.The Czech and American teams were announced Monday, along with the other teams to take part in the 2017 event: Australia, Britain, France, Spain and Germany. The players for those teams have yet to be decided.Federer, who decided to sit out the rest of this season following his loss in the Wimbledon semifinals to protect his surgically repaired left knee, will play for Switzerland with partner Belinda Bencic. He teamed with Martina Hingis to win the Hopman Cup in 2001, then played the following year with his now-wife, Mirka Federer.Australias Nick Kyrgios and Daria Gavrilova are the defending champions, beating Ukraine in the final in January. Puma Shoes Canada Stores . Radwanska, making her debut in the Seoul tournament, hit eight aces in a match that lasted 1 hour, 4 minutes at Olympic Park tennis stadium. "It was definitely a very good match -- I was playing really good tennis," Radwanska said. Puma Shoes Discount Canada . Tuesdays surgery at Atlantas Piedmont Hospital was performed by Dr. Xavier Duralde and Hawks team physician Dr. Michael Bernot. http://www.clearancepumacanada.com/ . Meanwhile, there were huge victories for Sunderland and West Ham over fellow relegation rivals, leaving the battle to avoid the drop up for grabs with the bottom 11 teams separated by just six points. Eden Hazard and Fernando Torres scored second-half goals to seal a fourth straight victory for Chelsea, which climbed above Arsenal and Manchester City in the standings ahead of their games on Monday and Sunday respectively. Cheap Puma Shoes Canada .ca looks back at the stories and moments that made the year memorable. Puma Shoes Canada Sale .7 million, one-year contract, a raise of $2.2 million. Wieters had asked for $8.75 million and the Orioles had offered $6. Daniel Merretts Gabba farewell appears set to be crashed by a Geelong side that coach Chris Scott says has a point to prove over their record against teams outside the AFLs top eight.The Brisbane Lions host the Cats, who have won their past five games and are vying for a top four spot, on Sunday afternoon.Under-pressure Lions coach Justin Leppitsch has had a rare stress free week after their thrilling win over Carlton and, with the aid of an eight-day break, believes his side will go into what looks on paper as a huge mis-match with confidence.It is Merretts last match in Brisbane after the veteran defender announced his retirement this week, with next rounds away clash with St Kilda to mark his 200th and final AFL appearance.But Geelong, after their narrow escape against Richmond, could well come out snarling after Scott highlighted their inability to finish off teams they are expected to beat.Im not going to argue that we havent been at our best against teams that are outside the top eight, thats a reality and one weve confronted head on, Scott said.ddddddddddddNow weve just got to do it.Talk is cheap. What I say here really has zero impact, and in some ways, what weve said to the players wont be tested until we see how we come out in the first 10 or 15 minutes this week.Scott said the Cats would not underestimate the Lions, who despite their rotten three-win season have occasionably troubled top sides, including Sydney at the Gabba earlier in the year.Im not trying to talk Brisbane up as a great team but they were 40 points up at half-time on the weekend against a team (Carlton) that beat us a few months ago, he said.Whatever Geelong serves up, Leppitsch is hopeful Brisbane can counter it for Merretts sake.Hes been a mainstay through a pretty ordinary era at our footy club and hes been a very loyal servant and we thank him for that, he said.Lets hope all of us can fire up for Rog. ' ' '