ESPN Chalks Vegas experts are here to provide analysis and best bets for all Week 7 games, starting with Thursday nights Chicago-Green Bay?matchup.Note: All odds courtesy of the Westgate Las Vegas SuperBook as of Thursday morning.Matchup: Chicago Bears at Green Bay PackersSpread:?Opened Green Bay -8.5; now Green Bay -7.5 Total:?Opened?46.5; now 46 PickCenter public consensus pick: 69 percent Green BayPublic perception: Its no surprise that the public is on the Packers, which is always a popular play. The Bears certainly dont inspire confidence at 1-5 straight up and against the spread. Cam Fowler Ducks Jersey .J. -- Pitcher Carl Pavano is retiring after 14 major league seasons. Giovanni Fiore Ducks Jersey . - Blake Griffin had 30 points and 12 rebounds, J. http://www.authenticduckspro.com/Cam-fowler-ducks-jersey/ .Y. -- Knicks coach Mike Woodson said Wednesday that J. Teemu Selanne Jersey . Thats about all he can do right now, so hes trying not to think about when he might be able to play again for the Los Angeles Lakers. Jakob Silfverberg Ducks Jersey .Y. -- Jayna Hefford scored the winning goal Friday as Canada survived a scare with a 4-3 win over Sweden at the Four Nations womens hockey tournament. RIO DE JANEIRO -- In the unpredictable sport of BMX cycling, where races last just about 40 seconds, a strong start means a lot.Get to the front after the first turn, and theres a good chance a rider will be able to avoid the kind of wreck-filled chaos that marked the action in the mens quarterfinal round at the Rio de Janeiro Olympics on a breezy afternoon.Its always the key, Australias Sam Willoughby said, but especially ... when its windy like this and theres carnage out there.An early lead will come in handy for riders in the mens and womens semifinals beginning Friday afternoon, with the medal races later in the day.Willoughby is on a roll headed into the semis after winning all three of his heats in the quarters on Thursday . Australian teammate Anthony Dean also had a strong quarterfinal round, while the United States and the Netherlands each sent all three of their cyclists into the mens semis.We dont have lanes and its a full-contact sport, so the start is very important, Willoughby, the 2012 silver medalist, said this week. To get out front at the first corner, you can run your own race from there and create your own destiny a bit.Its tough enough just to have a chance to lead the pack after the first turn.The action begins with cyclists released from a starting gate at the top of a ramp three stories tall. They pedal furiously down the ramp and pick up speed to jump hills and maneuver through turns on the roughly quarter mile--long course.dddddddddddd.S. rider Alise Post said she thinks riders reach a speed of 35 to 40 mph just a few seconds into the race. Theres no suspension on the bikes, either.Its very demanding for sure, Post said.The series of jumps after the starting ramp leads into the wide first turn. Inside position is important. Stay out in front and there is a greater likelihood that a rider wont get caught up in the pack of cyclists desperately trying to catch up.And this all might happen in a span of 10 seconds, maybe less.The alternative is to scramble from behind, which isnt uncommon, though less desirable.A contenders day can end in a hurry. In the quarterfinals on Thursday, two-time gold medalist Maris Strombergs barely missed the cut after getting set back from a crash in his first heat that also involved Britains Liam Phillips. Joris Daudet of France, the reigning world champion, also got knocked out after crashing.Theres still 800 feet of track that you cant mess up on ... because seven guys will pass you, no problem, U.S. rider Nic Long said. Its never easy. But yeah, winning to the first jump, the winning to the second jump, then winning the first turn, makes winning to the finish line that much easier.---Online:AP Summer Games: http://summergames.ap.org/---Follow Genaro Armas at: https://twitter.com/GArmasAP ' ' '