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A look at the U.S. Open, the years last Grand Slam tennis tournament:Surface: Hard courts.Site: USTA Billie Jean King National Tennis Center in New York.Schedule: The 14-day tournament begins Monday. The womens singles final is Saturday, Sept. 10; the mens singles final is Sunday, Sept. 11.New This Year: A $150 million retractable roof has been installed at Arthur Ashe Stadium, which will allow play when it rains.2015 Mens Singles Champion: Novak Djokovic of Serbia.2015 Womens Singles Champion: Flavia Pennetta of Italy.Last Year: Serena Williams bid for the first calendar-year Grand Slam since 1988 ended with a stunning loss to unseeded Roberta Vinci in the semifinals. Vinci then lost to Pennetta in the first all-Italian major final, 7-6 (4), 6-2. After winning her first Grand Slam trophy, Pennetta announced she would retire at the end of the season. Djokovic beat Roger Federer 6-4, 5-7, 6-4, 6-4 for his second U.S. Open title and 10th major championship overall.Key Statistic I: 22 -- Number of Grand Slam singles titles won by Williams, sharing the professional-era record with Steffi Graf. Williams can break their tie at Flushing Meadows. Only Margaret Court has won more, 24 -- 11 as a professional, 13 as an amateur.Key Statistic II: 186 -- Number of consecutive weeks Williams will have spent at No. 1 by the end of the U.S. Open, equaling Grafs all-time WTA record. Depending on results in New York, Williams could be surpassed in the rankings after the tournament.Whos Missing: Top names missing from this years field include Roger Federer (letting left knee heal), Maria Sharapova (serving a doping suspension), Victoria Azarenka (pregnant), Tomas Berdych (appendicitis).Prize Money: Total payout to players is a tournament-record $46.3 million, a $4 million increase from 2015. The mens and womens singles champions each receive $3.5 million, up from $3.3 million last year.---Online: www.usopen.orgNike Air Force 1 Schweiz Online . -- Arizona knocked off some quality opponents, rolled over a few overmatched ones and grinded out victories even when things didnt go so well. Nike Schuhe Schweiz Outlet . Ouellette, from Montreal, already has three Olympic gold medals since joining the team in 1999. http://www.nikeairfoce1schweiz.ch/ . -- The plastic that was taped across the lockers in Oaklands clubhouse came down and the champagne that was on ice went back into the cooler. Nike Air Force 1 Schweiz Kaufen . PAUL, Minn. Nike Air Force 1 Schweiz Schuhe . -- On the field, it was business as usual for Jameis Winston and No.PHILADELPHIA -- Long snappers are the most overlooked starters in the NFL until they mess up or get hurt.The Philadelphia Eagles were down to the No. 3 guy on their depth chart after Jon Dorenbos broke his wrist and backup Brent Celek suffered a stinger in a 27-22 loss to Washington last Sunday.Things got comical at that point.Linebacker Mychal Kendricks decided to try out for the job on the sideline. Defensive end Bryan Braman also attempted a few snaps.But versatile tight end Trey Burton got the call in a clutch spot in the fourth quarter. Burtons snap sailed high, punter Donnie Jones reached up to make the catch and put it down in time for Caleb Sturgis to stutter-step and kick a 41-yard field goal that gave the Eagles a short-lived lead.Donnie made an unbelievable play, Burton said. Hes obviously really good at what he does.Celeks only snap on a 50-yard field goal try was low and Jones couldnt handle it. Neither Celek nor Burton knew kicking balls arent the same as game balls. Theyre much slicker.I dont know why they do that, but it was real waxy, Celek said.The Eagles signed Rick Lovato to replace Dorenbos, who had played in 162 straight games since 2006. Celek and Burton now plan to snap a little more in practice. They may even use kicking balls.I havent done it since training camp, Burton said.Lovato played two games for the Redskins last month after Nick Sundberg was injured. Washingtons emergency long snapper is backup quarterback Colt McCoy. He doesnt fit the profile for the position, but McCoy volunteered for the job in the summer.I told them I could do it, which was a lie, McCoy said. Ive never done it before. But when I went out to do it, I was good at it. I was serviceable. Ive gotten a lot better ever since, and if they need me, Ill step in and do it.McCoy also is the backup punter and holder.We tried everybody who had shoulder pads -- everybody who was dressed, Redskins coach Jay Gruden said. Hes pretty good actually. Not much of a blocker, but hes pretty good.The Ravens once turned to star defensive tackle Haloti Ngata after Morgan Cox tore his right ACL in a game in 2014. Ngatas snap on an extra point was successful. Baltimore almost used running back Willis McGahee when Cox tore his left ACL in a game in 2010, but Cox finished the game out.Most teams have more traditional backups -- linemen, tight ends, linebackers.Travis Kelce, a 2015 Pro Bowl tight end, is one of Kansas Citys backups. His brother, Jason Kelce, is Philadelphias starting center. But snapping the ball on punts and kicks is a different, tougher task. Thats why Travis Kelce is the Chiefs No. 2 guy on puntts and fullback Anthony Sherman is the backup on kicks.ddddddddddddThe idea behind using both guys is that its so hard to be a snapper, to do a long snap and then shift to a short snap so I just wanted Kelce to focus on long snapping and then Sherman is another guy that we can use in a short snapping situation, Chiefs special teams coach Dave Toub said.Long snappers have to fire spirals to a punter standing 15 yards away and to a holder 7 or 8 yards deep. It requires speed and perfect placement because timing is crucial for kickers.Those guys are specialists for a reason and theyre so good and you dont realize how bad youre going to miss them until something like that happens, Jets special teams coordinator Brant Boyer said.Tanner Purdum has been New Yorks long snapper since 2010. Jason Taylor, the six-time Pro Bowl defensive end, was Purdums backup that year. But Boyer wouldnt reveal what the team would do in an emergency now.Its a scary deal if youre in our position, said Boyer, who played with Eagles special teams coach Dave Fipp in college at Arizona. Thats a doomsday scenario, for sure.NFL teams didnt always dedicate a roster spot to a player who was only a long snapper. They used guys who also played other positions. Hall of Fame offensive lineman Bruce Matthews was a long snapper throughout his career for Houston/Tennessee. His son, Jake Matthews, is Atlantas starting left tackle and backup long snapper behind Josh Harris.Ive been doing it since like peewee, Jake Matthews said. My dad did it forever in the league. That was one of the first things he taught us because its definitely got a lot value. It can take you a long way.Thats why Kendricks started practicing on his own earlier this season with the Eagles after his playing time on defense was reduced.The more you can do, the longer you can stay in the league, Kendricks said.The role has become so specialized that each team has a player who serves only as a long snapper. The Denver Broncos even have two long snappers on their roster because Casey Kreiter strained a calf a month ago so they signed veteran Thomas Gafford.---AP Pro Football Writers Arnie Stapleton and Teresa M. Walker and AP Sports Writers Stephen Whyno, David Skretta, Josh Dubow, Dennis Waszak, Dave Ginsburg, Steven Wine, Charles Odum, John Wawrow and Tom Canavan contributed to this report.---For more NFL coverage: http://www.pro32.ap.org and http://www.twitter.com/AP-NFL---Follow Rob Maaddi on Twitter: https://twitter.com/AP-RobMaaddi ' ' '