SINGAPORE -- Madison Keys is the first American other than Serena and Venus Williams to earn a berth at the year-end WTA Finals in more than a decade.The last American outside of a Williams at the finals was Lindsay Davenport, a former coach to Keys, in 2005.Keys debut in the WTA Finals, starting on Sunday, came courtesy of her winning a second career title in Birmingham, England, and reaching finals at Rome and Montreal.She also played in the Olympic semifinals, losing to Petra Kvitova for the bronze medal.Being here is a huge accomplishment for me, Keys said. I definitely want to ... prove that Ive worked really hard to get here, and Im here for a reason.Keys, who climbed into the top-10 rankings at No. 7 this month, is also the first American to debut in the top 10 since Serena Williams in 1999.That [fact] was definitely really surprising, Keys said. There have been a lot of great American players who I thought had made it, but obviously not.Second-ranked Serena Williams pulled out of the finals for the second consecutive year. She won the title in 2014, the first year the event moved to Singapore. Williams hasnt played since a US Open semifinal loss to Karolina Pliskova, and cited a persistent right shoulder injury.Keys will face Simona Halep in her first of three round-robin matches on Sunday. They are in the Red Group along with world No. 1 Angelique Kerber and Dominika Cibulkova.The White Group consists of defending champion Agnieszka Radwanska, French Open champion Garbine Muguruza, US Open finalist Pliskova, and Svetlana Kuznetsova. Air Jordan Retro Clearance .C. at the helm of the top team in the Eastern Conference. His tenure as the GM in Vancouver was all too brief. Though he led the Canucks to what was then a franchise record-shattering campaign in just his second season, Nonis was gone and replaced one year later. Cheap Air Jordans Authentic . Having already announced that the race will start May 9 with three stages in Northern Ireland and Ireland and finish in Trieste on June 1, the rest of the route was unveiled Monday. http://www.cheapaustraliaairjordan.com/ . The 26-year-old Ireland striker, who has four goals this season, has signed a three-and-a-half year contract with his new club. Cheap Air Jordan Australia . The 15th-ranked Canadian men lost the opening two games of their European tour: 19-15 to No. 17 Georgia and 21-20 to No. Air Jordan Australia Cheap . The defence is doing its part, too. Drew Brees threw a pair of touchdown passes in the first half and the guys on the other side made sure that was enough, sending the Saints to a 17-13 victory over the Atlanta Falcons on Thursday night.Aston Villa are an embarrassment and should be classed as one of the worst teams in Premier League history, according to Jamie Carragher. The Sky Sports expert delivered his damning verdict following Liverpools 6-0 thrashing of Remi Gardes side at Villa Park on Sunday afternoon.Goals from Daniel Sturridge, James Milner, Emre Can, Divock Origi, Nathaniel Clyne and Kolo Toure condemned Villa to their heaviest home league defeat since 1935, leaving them eight points adrift of safety with 12 games left to play. And Carragher insisted the team that played on Sunday simply arent Premier League class.They are an embarrassment and they have been for a few years, he said on Super Sunday.It wont be that team in the Championship, theyll change it obviously, but if that team is in the Championship it will be closer to the bottom than the top - theres no doubt about that.I was thinking about how difficult it is for young kids. The dream is to play in the Premier League. If you watch Aston Villa it gives you hope with how that group of players are playing in the Premier League, at that level. James Milner celebrates with team-mates after his cross found the bottom corner for the second goal I always think when teams go down theres always two or three players where other managers in the Premier League will try and take them.I cant imagine one Premier League manager looking at that team and thinking theres one player there hed want to take into his squad. Thats how poor they are.Liverpool led 2-0 at half-time and even before the avalanche of second-half goals, Carragher described Villa as the worst Premier League side he could remember.They will finish with more points than the Derby side of 2007/08 and the Sunderland team of 2005/06, but Carragher says they have been sliding to this level for several years. A dejected Remi Garde reflected on Aston Villas 6-0 loss to Liverpool I said at half-time they are one of the worst Ive seen and was reliably informed Derby and Sunderland may be the worst, he added.Forget about what points they are on, I think they are the worst Ive seen. I cant remember those seasons. Thats as bad as youre going to see. I cant imagine one Premier League manager looking at that team and thinking theres one player there hed want to take into his squad. Thats how poor they are. Jamie Carragher I think weve known for a long time they are going down, not because of where they are in the league but because they are the worst team in tthe league.dddddddddddd Thats why they are going down, nevermind being bottom.Its been coming for a few years, really. Ive been watching the games for Sky and have been surprised theyve stayed up. Christian Benteke has kept them up for two or three years, but with him gone, theyve had no chance.They are one of the worst teams in the Premier League. Divock Origi was mobbed by away fans after his goal Carragher also argued Liverpool have been average for much of this season, but says the return of Sturridge and Philippe Coutinho from injury has elevated them to a higher level.He said: Brendan Rodgers could look back and say the injuries to Daniel Sturridge maybe cost him his job. Thats how much he elevates this Liverpool team.Without him and Coutinho, its an average team and weve been watching that for the last few months. Liverpool manager Jurgen Klopp was full of praise for his team Were expecting Jurgen Klopp to come in and make a difference, but I think he said in the week hes not David Copperfield. You need top players.Thats what Liverpool have. They havent got that many of them, but the one true one they have is too injury-prone and thats the problem for them.If they can keep him fit between now and the end of the season, you would expect a good run. Liverpool midfielder James Milner feels that their 6-0 win over Aston Villa was an overdue result Are Aston Villa the worst team in Premier League history? Have your say in the comments box below or tweet @SkyFootball. Also See: Villa hit for six Garde on Villa spirit As it happened Match stats ' ' '