TOKYO - Kei Nishikori says he will sit out Japans Davis Cup quarter-final against the Czech Republic this weekend due to a groin injury. Nishikori beat Roger Federer in the Sony Open quarterfinals last week, but he had to withdraw from the semifinal against Novak Djokovic because of pain in his left groin. Nishikori has retired or withdrawn 14 times in his career, including three times in Grand Slam events. He said he wont need surgery, but hes unsure how long hell be sidelined. Nishikoris absence hurts Japans chances of beating the two-time defending champion Czechs in their first tie since 1935. Custom New York Mets Nike Jerseys . - Mike Zimmer has brought a demanding style to the Minnesota Vikings. Custom Minnesota Twins Nike Jerseys . 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Yoenis Cespedes proved he can play through a hurting right heel, giving Scott Kazmir and the As a spark with a pair of RBIs that helped spoil the Minnesota Twins home opener with an 8-3 victory on Monday.FRANKFURT - Having advanced to the knockout stage in the Champions League, Bayern Munich is looking to successfully conclude a good week when it travels to Eintracht Frankfurt in the Bundesliga on Saturday.Eintracht has lost its last three games, while Bayern is riding high. It beat Borussia Dortmund 2-1 last weekend in the Bundesliga and then eased past Roma 2-0 in the Champions League to make sure of advancing and topping its group.Its closest followers, Wolfsburg and Borussia Moenchengladbach, are four points behind. Wolfsburg hosts Hamburger SV, which is showing signs of revival, while Moenchengladbach visits next-to-last Dortmund, which has lost five straight.Here are some things to know ahead of the Bundesliga weekend.___BAYERN A DISASTER?At least in one area, Bayern coach Pep Guardiola thinks his team is a disaster — in creating goals from corners. In 10 matches so far in the Bundesliga, Bayern has not scored after a corner.We are a disaster and we have to improve there, the perfectionist coach said.Guardiola insists that his team is still not at its peak.We need to play better, we can never be satisfied, that would be a big mistake. We can always play better, Guardiola said after the victory over Roma.Not good news for Frankfurt.___WOLFSBURGS RISEEver since winning the title surprisingly in 2009, Wolfsburg has been trying unsuccessfully to establish itself as a Champions League team. It may be closing in on its goal this season.One of the reasons for its good run (six consecutive victories in all competitions), is the playmaker Kevin de Bruyne. The Belgium international tops the league with seven assists, and also has one goal.I am a winner, I am here to win every match, said de Bruyne, who failed to make an impact in Chelsea. No player can play a perfect game, but I try it every time.Coach Dieter Hecking says the Belgian is no world champion in training but is always eager to play.He is the one who can make the difference in a match, Hecking acknowledged.___CHANGING ROLESWhile Dortmund is battling to escape from the relegation zone, Moennchengladbach is playing some of the best football in the league.ddddddddddddMoenchengladbach gave Bayern a tough test in a 0-0 draw and is the only other undefeated team.Dortmund is hoping to take some of the momentum from the Champions League into the domestic competition. With four wins in four games, Dortmund has advanced in Europe. Dortmund led against Bayern last week before a couple of errors allowed Bayern to come back for a 2-1 victory.Moenchengladbach has a young, exciting team resembling The Foals of the 1970s, who dominated the league and won five titles.Christoph Kramer, Max Kruse, Andre Hahn and Patrick Herrmann are the stars of the team and its fast-paced attacking style, along with Raffael, a Brazilian playmaker.___TOP SCORER, BOTTOM CLUBFranco di Santo is one of the four players leading the Bundesliga with six goals apiece. That is remarkable seeing that his team, Werder Bremen, has only one victory and is last in the standings.He is a leader who is good for us, teammate Felix Kroos said of the Argentine. Di Santo is also popular because of his sunny disposition and positive attitude.Its important, especially in bad times, di Santo said of his good mood despite Bremens dire situation. Di Santo has settled in in his second season and also benefits from a change of formation since new coach Viktor Skripnik started playing with two forwards.___PADERBORN SURPRISEWith 15 points from 10 matches and seventh place, promoted Paderborn is arguably the biggest surprise of the season so far.The small club has the fifth best attack with 16 goals. But coach Andre Breitenreiter remains cautious.We only have 15 points. Thats only a good basis to avoid relegation, not more, said the coach, who is credited with Paderborns success because of his flexible tactics.But defender Patrick Ziegler thinks his team has more substanceAfter 10 matches, you cant talk about beginners luck any more. We are here to stay, he said optimistically.Paderborn travels to Augsburg, another small club that manages to stay in the league with limited means. ' ' '