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TUCSON, Ariz. -- Arizona went into preseason camp with numerous issues to address. There was a new defensive coaching staff installing a new system, a quarterback competition despite a returning starter and new faces on special teams.All of that became secondary on Aug. 8 when the team learned of the death of offensive lineman Zach Hemmila.The senior died in his sleep, leaving a hole in the Wildcats line and a much bigger one in their hearts.Everybody in our program is hurting, Arizona coach Rich Rodriguez said.Hemmilas death came early in camp and is something the Wildcats will carry with them into what already had the potential to become a difficult season.After four seasons of struggling on defense, Rodriguez replaced his defensive coaching staff, hoping a new approach would work. With that could come some growing pains as players try to learn a new system.Arizona will move the ball in Rodriguezs quick-hitting offense, but who will be pulling the trigger is a question after Rodriguez said there will be competition for the quarterback job.The Wildcats, like every team in the Pac-12, also have a difficult schedule, with few easy weeks on the calendar.A few more things to look for from Arizona for the 2016 season:DEFENSIVE CHANGES: Arizona has consistently been one of the nations worst defenses, so Rodriguez fired coordinator Jeff Casteel and his defensive staff. He hired former Boise State defensive coordinator Marcel Yates to overhaul the defense. Arizona will abandon the 3-3-5 defense that Casteel installed and go to a more attacking defense in hopes of creating pressure and mistakes. Arizona will be relying on several inexperienced players on that side of the ball, so there could be a learning curve.THE QB: Junior Anu Solomon has two seasons of experience as Arizonas starting quarterback, but Rodriguez was not ready to automatically hand him the ball. Solomon struggled with injuries last season and wasnt as effective as he had been as a freshman when he was healthy. Rodriguez went into spring football saying he wanted competition for the starting job and Solomon will have to beat out Brandon Dawkins and freshman Khalil Tate to get it. Even if Solomon is the man, Dawkins will likely take his turns under center, as he did last season.WILSONS RETURN: Running back Nick Wilson had a strong freshman season, using his combination of power and speed to break Arizonas freshman rushing record with 1,375 yards and 16 touchdowns. Last season, he struggled with injuries and missed four games, finishing with 760 yards and nine touchdowns. Having Wilson healthy will force teams to play against the dive option in Rodriguezs zone-read offense, opening up holes to the outside.SPECIAL TEAMS: Arizona had to replace its kicker and punter from last season. One player could end up getting both jobs. Sophomore Josh Pollock is the only scholarship special teams player on the roster and could handle placekicking, punting and kickoffs. Thats a lot to handle, so the Wildcats could use someone else to handle punting duties -- if anyone steps up in camp.KEY GAMES: Oct. 1 at UCLA; Oct. 8 at Utah; Oct. 15 vs. USC; Nov. 25 vs. Arizona State.SEASON OPENER: Brigham Young, Sept. 3 at University of Phoenix Stadium in Glendale. The Wildcats have had some relatively easy openers under Rodriguez, but this should be a test right out of the gate -- physically and emotionally.PREDICTION: 6-6, smaller bowl. The death of Hemmila will likely weigh heavily on the Wildcats, though it could be a rallying point for the season. Working against them is a difficult schedule and still plenty of questions on the defensive side of the ball. Mecole Hardman Jersey Large . Peter Holland and Brad Staubitz were sent to Toronto on Saturday as the Maple Leafs traded defenceman Jesse Blacker and draft picks to the Anaheim Ducks. Mecole Hardman Jersey Large . Brett Kulak and Jackson Houck of the Vancouver Giants were each charged with assault causing bodily harm on Aug. 18, according to the B.C. court services. http://www.customchiefsjersey.com/ . With the short-handed Warriors needing help from someone -- anyone -- to stop a three-game skid, ONeal returned from right knee and groin injuries that had sidelined him for four games and put up season highs with 18 points and eight rebounds. It was just enough to help lift Golden State to a 102-101 victory over the New Orleans Pelicans on Tuesday night. Custom Chiefs Jerseys .Y. -- Canadas Kaillie Humphries and Heather Moyse have another World Cup gold medal after winning the two-women bobsled race on Saturday in Lake Placid, N. Authentic Custom Chiefs Jersey . But when it comes to determining if Raymond will find a place on the Leafs roster when training camp concludes in a week, well, that decision will ultimately fall to the head coach. BEVERLY HILLS, Calif. -- Bob Costas and other top members of NBCs Olympics coverage team veered between optimism and caution in predicting Rio de Janeiros ability to pull off a successful Summer Games and said NBC will cover the good and bad.Other Olympics have taken place without significant difficulties and he hopes it will be the same for Rio, Costas said Tuesday. But he then ticked off the daunting list of challenges faced by the Brazilian city.It would be naive to think it isnt grappling with security worries, pollution and political turmoil along with a deep recession thats occurred since Rio won the Games, Costas said.He spoke to TV critics from Rio by satellite, along with executive producer Jim Bell and correspondent Mary Carillo. The opening ceremony airs Friday on NBC, which is carrying the games on the air and online.Whether any city can carry off the immense event is the question heading into virtually every Olympics, Bell said. Then the athletes arrive, the Olympic torch is lit and that is the story the network tells, he said.But if a host city falls short, he said, then NBC should focus on that.Costas said that any security issues or ill effects from contaminated water will be immediately apparent and have to be addressed. So far, the best advice given athletes competing in open-water sailing or swimming events is to close their mouths and keep their heads above water, he added.I guess some new techniques will be required, Costas said, sarcastically, adding, Im not trying to be facetious here, but its going to be impossible, in some cases, not to address some of the issues that have come up before the Olympics, because they will directly (effect) the competition.Many open-water competition test events have been held and resulted in zero problems so far, Belll said.ddddddddddddWhen Carillo chimed in that she will be helping to cover those contests, Costas asked her if she planned to take a dip yourself.Absolutely not, she replied. She added, however, that shes been told that open-water swimmers in the 2012 London Olympics faced dirtier conditions from goose droppings in Hyde Parks Serpentine lake.According to a 16-month-long study commissioned by The Associated Press, the waterways of Rio de Janeiro remain as filthy as ever just days before the Games begin and are contaminated with raw human sewage teeming with dangerous viruses and bacteria.If illness or other crises arise, does NBC bear some responsibility for what happens because of the large license fee it pays to the International Olympics Committee, the NBC team was asked.I dont think so, Bell replied.Costas expanded on that answer, saying that the Rio Games would happen without NBCs involvement. The argument could be made that the IOC should have considered moving or postponing it, given the problems that began emerging months ago, he said.But once the games were being held, the network that owned the rights to televise those games was going to televise them, Costas said, adding that the question about network responsibility becomes how thoroughly and credibly do we cover it.His expectation is that NBC Sports and NBC News will not shy away from that, Costas said.Asked if NBC could have used its financial-stake clout to influence the IOC, Bell said he didnt think so.You could make the case Zika is a bigger story in Florida than in Rio, where it is winter, and cooler and drier, he said. Is Disneyland responsible for bringing people to Florida? ' ' '