LONDON -- If Serena Williams?defeats?Angelique Kerber in the Wimbledon final (Saturday, 9 a.m. ET on ESPN/WatchESPN), she will equal Steffi Grafs modern-era record of 22 Grand Slam titles.However, the German has stopped that from happening once already, beating the world No. 1 in the Australian Open final in January. Here are five reasons Kerber could stop history from being made again:Melbourne memoriesUsually, its Williams who has the psychological advantage before a Grand Slam final. This time? Not so much. This is one of those rare occasions when a player can take great encouragement from a recent encounter with Williams at a major.Kerbers first Grand Slam triumph came at the Australian Open, when she defeated Williams in three sets. That was on a hard court, and Wimbledons 4-seed experienced a first-round clay-court blip at Roland Garros, but she ought to be feeling assured of her game.Williams woeSerena hasnt won a Grand Slam for a year, and twice already this season she has faltered in a major final when strongly favoured to win.Achieving a tally of 21 titles is special, but Williams seems stuck there. After that disappointment against Kerber in Melbourne, she lost to Spains Garbine Muguruza at Roland Garros last month.Add those two most recent Grand Slam defeats to the almighty shock in New York last season -- when she lost to Italys Roberta Vinci in the semifinals at the US Open -- and you can see a pattern emerging.One of Williams great strengths is her mental fortitude -- her will to win has won her countless matches and titles -- but she can also be prone to self-doubt and nerves.If Williams goes down a set, and Kerber is playing well, how will the American respond?Misleading matchupWilliams lopsided semifinal victory against Elena Vesnina is no guarantee of success in the final, even though she needed just 48 minutes to defeat the unseeded Russian 6-2, 6-0 in the fastest-ever Wimbledon semifinal.Recall what happened in Melbourne, where Williams was in command of her semifinal, beating Polands Agnieszka Radwanska for the loss of just four games, including one bagel set, only to then lose in the final to Kerber.There is a huge jump in class between Vesnina, the worlds No. 50, and Kerber, ranked No. 4 and a Grand Slam champion.Left-field dangerA good southpaw serve is always awkward for opponents, but never more so than on grass, where the ball skids away from the receiver.Kerbers view is that her left-handed delivery could be more of a weapon on the grass of Centre Court than it was on the hard of Melbournes Rod Laver Arena. I can serve a little better, and that makes me much more dangerous than on hard, she said.Williams has faced only right-handed opponents this fortnight, so she hasnt had any recent match practice against a lefty serve.Steffi sparkIts not just Williams who could take inspiration from modern-era Grand Slam record holder Steffi Graf on Saturday. On both sides of the net, the finalists will be thinking about Fraulein Forehand.The German has long been an important and influential figure in Kerbers tennis life. For years, she idolised Graf and watched her whenever she could. She has also studied some of the 47-year-olds highlights on YouTube.The connection between them was only strengthened by victory at the Australian Open, which made Kerber the first German woman to score a Slam since her idol won at Roland Garros in 1999.Kerber savours her opportunities to spend time with Graf. 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Cheap Vapormax Canada Online .1 million pounds ($61.2 million) on Saturday, giving the beleaguered English Premier League champions a major lift.Billy Joe Saunders long-awaited first defence of his WBO world middleweight title will be against Russian Artur Akavov at the Motorpoint Arena in Cardiff on October 22.The Briton had been scheduled to fight on the same bill as compatriot Tyson Furys world heavyweight title rematch with Wladimir Klitschko on October 29. But when Fury pulled out, Saunders was given a return date a week earlier than planned.?Saunders (23-0, 12 KOs) has been delayed in making a first defence due to injury, after twice flooring Andy Lee in a points win last December, and turned down an offer to fight the divisions No. 1 Gennady Golovkin (36-0, 33 KOs) at the start of the year.?But future fights against WBC-IBF-WBA champion Gollovkin of Kazakhstan, or Mexican Saul Alvarez, the WBO light-middleweight titlist, will be back on the agenda for 2017 if Saunders extends his unbeaten record in the Welsh capital.dddddddddddd?Nothing comes easy in boxing and Im definitely not taking Akavov for granted, said Saunders. Hes a strong fighter and very dangerous and if I dont come in 100 percent then he could cause an upset in my first title defence.Im going to make sure Im in the shape of my life and give Akavov the toughest night hes ever had, hes never been stopped before so this is going to be a first for him. ' ' '