TOKYO -- While Rio Olympic organizers are under immense pressure to finish preparations before Aug. 5, their Tokyo counterparts are already facing skyrocketing costs for an event four years away.Tokyo 2020 organizing committee president Yoshiro Mori acknowledged at an executive board meeting this week the cost of building seven temporary venues for the Olympics has surged to an estimated $2.6 billion, up from an initial estimate of $690 million.Mori said the original figures were the result of sloppy calculations which he blamed on the Tokyo metropolitan government and the Japanese Olympic Committee.The organizing committee hasnt disclosed an official estimate of the overall costs but has acknowledged it will be considerably higher than the $3.5 billion that was forecast in the bid.Preparations for the 2020 Games have been plagued by a series of scandals involving the new national stadium, the official logo and allegations of bribery in the bidding process.Work on the new national stadium has fallen behind schedule because the government abandoned an original design due to spiraling costs.The total costs for staging the Tokyo Olympics are shared by the organizing committee, the Tokyo municipal government and the national government.Tokyo organizers say they have saved more than $2 billion by working with the Tokyo government to cut costs by moving some events to existing facilities. 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Surely Ortons name isnt the first that comes to mind for fans wanting a change after years of damaging interceptions, fumbles or, most infamously, the field goal flub when Romo dropped the snap on a kick that could have won his first playoff game in 2006. Lance Alworth Chargers Jersey . LOUIS -- Heading into the final stretch of the season, the issues for the Chicago Bears banged-up defence only seem to be getting worse. CLEVELAND -- Add cornerback Joe Haden to the Browns lengthy bumped-and-bruised list.The two-time Pro Bowler has a groin issue and is listed as questionable for Sundays game at Miami. Haden did not take part in the teams walk-through on Friday and coach Hue Jackson said its too early to say if Haden will be able to play against the Dolphins.Well see how bad it is, Jackson said.Haden, who was limited to just five games last season by injuries, had two interceptions in last weeks 25-20 loss to the Baltimore Ravens. Haden played every snap and also returned a punt 13 yards.If Haden cant go, veteran Tramon Williams would likely take his spot opposite Jamar Taylor.Also, kicker Patrick Murray is on the injury report with a knee issue. Jackson said Murray, who missed a 52-yard field goal and had an extra point blocked, was injured during Fridays workout and is also questionable. Murray missed all last season with a torn knee ligament.The injuries to Haden and Murray are the latest for the beaten-up Browns, who have already lost five starters, including two quarterbacks, in the first three weeks.On Friday, the team clarified McCowns injury, saying he broke his left collarbone. Earlier in the week, Jackson was vague about details on McCown, who broke his right collarbone last season and missed the final eight games.The 37-year-old McCown only started last week because the Browns lost Robert Griffin III in the opener with a broken bone in his left shoulder.dddddddddddd Hes going to miss at least seven games, and possibly more if he needs surgery.With McCown and RG3 out, rookie Cody Kessler will start this week, the 26th quarterback to start for Cleveland since 1999.Earlier this week, Browns rookie wide receiver Corey Coleman broke his hand in practice and will miss at least one month. On Sunday, starting center Cam Erving was hospitalized with a bruised lung and rookie defensive lineman Carl Nassib broke his left hand against the Ravens.Despite the rocky start, Jackson is staying upbeat.Im not blinking, he said. Im never going to do that. This football team and this organization depend on me to have a positive outlook about it all, and I do because I have seen this before. When you are changing things and you are trying to come from where weve been, these are the things that you have to go through. That saying, `Without struggle, there would be no progress. We are struggling, but we are going to get some progress here pretty soon. I promise you that.---Online: AP NFL website: http://www.pro32.ap.org and AP NFL coverage on Twitter: http://www.twitter.com/AP-NFL ' ' '