Its not easy to find a weakness in Roger Federer, who is seeking an eighth Wimbledon title and an 18th Grand Slam triumph. Lets keep this between ourselves for now, but the Wimbledon Diary thinks it might have done just that.So far during The Championships, Federer has been successful with just 12.5 percent of his Hawk-Eye challenges, with just one correct query from the eight times he has called upon the technology. Contrast with his quarterfinal opponent, Croatias Marin Cilic, who has a hit-rate of 61.5 percent during the tournament to date, with eight correct challenges from 13 attempts. Of the eight men left in the singles draw, only one has a lower percentage than Federer -- thats Frenchman Lucas Pouille, who was wrong with all six of his, so is lingering on zero.In Novak Djokovics absence, Andy Murray is the highest seed left in the tournament, but he could also do some work on this part of his game -- he has been successful with 23.1 per cent of his challenges, with three from 13. The overall average for the mens singles so far is 30 percent, with the same number in the womens event, too.Golden Bear spotted in SW19Jack Nicklaus, who has been in the Royal Box for the past couple of days, is more than just a tennis fan. The golfer, who won 18 majors, has previously played some small part in tennis history -- the Williams sisters have been known to practice in the grounds of his Florida home. Nicklaus has three grass courts in his back garden.Serena aces the numbers gameAside from 22, which is how many Grand Slams Serena Williams will have if she lifts the Venus Rosewater Dish on Saturday, theres one number that fascinates her coach Patrick Mouratoglou. That number is 102, which is how many aces Williams served during the 2012 Championships. That was the first Grand Slam that we won together and she served at a higher level than I think anyone in the history of the sport, the Frenchman told the Wimbledon Diary. She served more aces in that tournament than any woman or man -- and you have to remember that the men would have been playing over five sets. Thats crazy. Her serve is just a huge weapon on grass.Passing the Wimbledon smell testUsed tennis balls can be bought from a kiosk outside Centre Court. No doubt a few tennis fans will be sniffing the Slazenger balls before using them at their local courts. Thats inspired by Slovakian Dominika Cibulkova, a quarterfinalist in the womens singles, who successfully identified a ball from each of the four Grand Slams on smell alone. Swell Water Bottle Sale . "Jeff is a hard worker who was an important special-teams contributor for us last season," said Stamps GM John Hufnagel. Swell Bottles Wholesale . Klitschkos management company says the bout will be the Ukrainian fighters 25th world championship fight. The 1.83-meter (6-foot) Leapai defeated the previously unbeaten Denis Boytsov in November to become the WBOs mandatory challenger. http://www.swellwaterbottlesale.com/Swell-Traveler-Bottle-Sale/ . Aside from the trilogy main event title fight, there are a number of intriguing matchups in the heavyweight, welterweight and lightweight divisions. sWell Traveler Bottle Sale . During the athletes parade, the 23-strong Ukrainian team was represented by a lone flagbearer in an apparent protest at the presence of Russian troops in Ukraines Crimean peninsula. Swell Water Bottle Clearance . Sulaiman, 44, was chosen unanimously Tuesday in a vote by the leadership, the World Boxing Council said. Sulaiman becomes the sixth president of the organization. ATLANTA -- Ervin Santana has been a model of efficiency lately for the Minnesota Twins.Early on it was all about getting a run on the board and then watch Ervin go to work, manager Paul Molitor said. He was just kind of on cruise control there for a while.Santana scattered four hits over seven scoreless innings, Joe Mauer homered and the Twins beat the Atlanta Braves 4-2 on Tuesday night.In a matchup of the two worst teams in the major leagues, Minnesota improved to 48-71, four games better than the Braves.Santana (6-9) walked two and struck out six, throwing 64 of his 107 pitches for strikes to win his third straight start. Hes accustomed to pitching at Turner Field after spending the 2014 season with the Braves, but the muggy conditions were still tough to overcome.I feel great, Santana said. There was a lot of humidity, but we got the win. Thats the most important thing.The Twins took a 1-0 lead in the first on Trevor Plouffes RBI double. In the eighth, Mauer hit his 10th homer and Kurt Suzuki had an RBI single to make it 3-0.Brandon Kintzler earned his 12th save in 13 chances after facing four batters in the ninth.Santana allowed three runners to get into scoring position before striking out Jace Peterson in the second, Chase dArnaud in the third and pinch-hitter Jeff Francoeur in the seventh.Pitching against the majors weakest offense, Santana improved to 3-2 with a 1.99 ERA in seven starts since the All-Star break. Atlanta ranks last in runs and homers.He just commands both sides of the plate with his fastball, Braves first baseman Freddie Freeman said. Hes got that slider you think youre going to hit, and it just disappears. He had it working today.The Braves cut the lead to 3-2 in the eighth. Ryan Pressly gave up Matt Kemps RBI double and Nick Markakis RBI groundout, but he stranded a runner at third when Adonis Garciia lined out.dddddddddddd.Minnesota made it 4-2 in the ninth when Mauricio Cabrera, the sixth of seven Atlanta pitchers, gave up Plouffes RBI single.Mauer went 3 for 4 and is hitting .418 with 14 RBI in his last 19 games. Suzuki is hitting .322 with 26 RBI in his last 42 games.Atlanta starter Joel De La Cruz (0-6) gave up four hits, one run, two walks and struck four in 5 1/3 innings.The Twins are 15-8 in their last 23 road games. The Braves dropped to 18-40 at home.WELCOME TO THE BIGSBraves SS Dansby Swanson, the No. 1 overall draft pick of 2015, will be in the lineup Wednesday and make his major league debut when hes called up from Double-A Mississippi. Swanson replaces Erick Aybar, who was traded before Tuesdays game to Detroit for catching prospect Kade Scivicque. In 127 games in the minors, Swanson hit .277 with 10 homers and 66 RBI.TRAINERS ROOMTwins: Molitor said Miguel Sano could return to Wednesdays lineup after missing the last three games with a sore right elbow. An MRI taken Monday showed no structural damage. Sano had Tommy John surgery on the same elbow and missed the 2014 season.Braves: Interim manager Brian Snitker said All-Star RHP Julio Teheran was encouraged after making a rehab appearance Sunday at Triple-A Gwinnett. He allowed three hits and two runs -- one earned -- with five strikeouts in five innings. Teheran, the Atlanta ace, is expected to come off the DL and start Friday against Washington. Hes been sidelined since July 30 with a right lat strain.UP NEXTTwins: RHP Kyle Gibson (4-7) is 2-7 with a 6.10 ERA in 11 career interleague starts.Braves: RHP Mike Foltynewicz (6-5) won at Minnesota on July 27 despite giving up 12 hits and seven runs -- six earned -- in 5 1/3 innings. ' ' '