DAYTONA BEACH, Fla. Wade Boggs Jersey . -- Engine troubles during the day, wrecked cars at night. Stewart-Haas Racing found all sorts of trouble at Daytona International Speedway on Saturday. Owner/driver Tony Stewart and teammate Danica Patrick got the miserable day started with blown engines in pole practice for the Daytona 500. They will have to start at the back of the field in Thursdays qualifying race and in the Feb. 23 Daytona 500. Things got worse in the Sprint Unlimited a few hours later. Stewart, Patrick, Kevin Harvick and Kurt Busch were involved in a nine-car wreck in the exhibition race, knocking out three of the four SHR cars in the event that kicks off the NASCAR season. Harvick was able to return to the track but was well off the pace. "You hate to have that happen," Stewart said. "Thats just part of it. Back at Daytona." The melee started when Matt Kenseth turned in front of Joey Logano. Loganos front bumper turned Kenseths car sideways, triggering all sorts of chaos. SHR was the big loser. It looked like Patrick would wave her way through an obstacle course of wrecked cars, but she got her left-side tires on the infield grass, which got her turning sideways. And as she tried to straighten out her No. 10 Chevrolet, boyfriend Ricky Stenhouse Jr. plowed into her. "I got hit by my boyfriend. What a bummer," Patrick said. "I was sitting there and pretty much just about stopped and then I got hit. That was it. It was a real bummer. I was having fun and I felt like I was learning a lot. It was good to run with those guys. It would have been nice to get it to the end for the experience." Jeff Gordon, Brad Keselowski and Carl Edwards also were involved in the crash on the front-stretch. "Really unfortunate that so many cars are torn up, especially when it appears that I probably triggered it," Kenseth said. "I feel bad about that and feel bad that all this stuff is all torn up." SHR has to figure Speedweeks will improve from here. Stewart, Patrick and HScott Motorsports driver Bobby Labonte had engine failures in practice, creating concern that Hendrick Motorsports might have issues. Stewart, Patrick and Labonte all lease engines from Hendrick, which also fields cars for Gordon, Jimmie Johnson, Dale Earnhardt Jr. and Kasey Kahne. "Not really concerned about it," Stewart said. "Pretty confident itll be fine." Labontes engine went first. Stewarts started smoking a bit later, followed about 10 minutes later by Patricks. "I was like, Man, are we doing something?" Patrick said. "Its something that we are doing in our family here and we need to figure it out. I was saying I bet other Hendrick cars are thinking, Whats going on? So we have got time to hopefully figure it out. Definitely figure it out before the race." Though Hendrick drivers had no engine problems, Johnson, Gordon, Earnhardt and Kahne seemed to be down on horsepower. The fastest Hendrick driver during the first practice was Gordon, who was 21st on the speed chart. "We feel like we understand what is happening," Hendrick general manager Doug Duchardt said. "We will get the engines back over and tear them down from NASCAR. I think we will be able to confirm everything that is happening. ... We think we understand what is happening there and we will take a look at that." Duchardt and Scott Maxim, Hendricks director of engine track support, said they are confident the engines wont be an issue in Saturday nights Sprint Unlimited exhibition race, in qualifying Sunday, in the dual qualifying races next Thursday or in the Daytona 500. "Moving forward, we will be all right," Maxim said. "We will identify what weve got and we will make changes needed, and I think that we will be able to make corrective action. We will be able to look the engines over closely and make sure that we are not going into (Sunday) with an issue. Then after that, we will be all good." Mark Teixeira Jersey . A knee to the thigh might have stung him the most, but his sixth straight double-double made up for the brief burst of pain. Robinson Cano Jersey . This week, they discuss the NCAAs revenue sharing, Don Zimmer, soccer language and Super Bowl 50. http://www.authenticbaseballshopyankees.com/black-18-didi-gregorius-womens-jersey/ . Ricciardo made it only halfway around the Jerez track before his RB10 rolled to a stop and began spouting smoke from the back. After team mechanics tended to the car, Ricciardo went back out for a mere two trips around the circuit before calling it quits.Anderson Silva hasnt been in the UFC octagon since his leg was shattered 13 months ago. His opponent Saturday night has been away even longer, but not due to injury. Nick Diaz was just waiting for a fight worth his pain. Catch the UFC 183 Prelims on TSN4 at 8pm et/5pm pt. The enigmatic Diaz returns from a 22-month layoff to take on arguably the worlds most accomplished mixed martial artist in the main event of UFC 183 in Las Vegas. Silvas comeback from a devastating injury is the main attraction of the show at the MGM Grand Garden, but Diaz has been a dominant, divisive figure in the sport virtually since he was a teenager fighting his way out of a rough upbringing in Stockton, California. Many MMA fans love the attitude and toughness that make him a compelling attraction opposite Silva (33-6) — and Diaz (27-9-1) agreed to end his semi-retirement for this big-money fight. Theyre going to use me to fight the most important guy, because any guys that youve got out there right now arent really shining too hard, Diaz said. So theyll use me any time they need a guy for a big fight. They need a real fighter that fights the way that they want, then all theyve got to do is make a deal with me. Diaz is moving up in weight to challenge Silva, who was on top of the sport until losing two fights to Chris Weidman in 2013. Although his leg appears to be sound, the MMA world will be holding its collective breath when Silva unleashes his first kicks at Diaz. I fight the same, Silva said. My techniques, my style — I dont change nothing. I am training more. I think now Im stronger. Im faster and more experienced, but I dont change nothing. I go kick. I go boxing. Not too much, because Nick has the best boxing, but I go fight. While the sport waits to see how Silva will respond, Diazs return from consecutive losses is another compelling aspect of the UFCs traditional Super Bowl weekend show in its hometown. Welterweight contender Tyron Woodley also meets up-and-coming contender Kelvin Gastelum, and crowd-pleasing lightweights Joe Lauzon and All Iaquinta square off. Sonny Gray Jersey. Former womens bantamweight title contenders Miesha Tate and Sara McMann meet on the undercard. Silvas return is an important development for the UFC, which has bounced back from a rough 2014 with a solid slate of January fights. The UFC lost key pay-per-view stars Brock Lesnar and Georges St. Pierre in recent years, but the 39-year-old Silva is thinking less about his marketing value and more about revitalizing his career, which he insists has no end in sight. Its my legacy, Silva said. Its my dream, and the new Anderson is back. So more experience, more technique. Im faster, stronger and happier, and the UFC is giving me one more chance. Silva is one of the few fighters who attract more attention than Diaz, the bird-flipping triathlete, marijuana enthusiast and willing brawler who once held the Strikeforce and WEC welterweight titles. Diaz has been uniformly respectful to Silva during the promotion — although he stayed in classic Diaz form by missing a flight to an open workout for fans this week. Perhaps Diaz is in a good mood because he can eat. After more than a decade of draining weight cuts to 170 pounds for his welterweight fights, Diaz is thriving in training as a middleweight. Ive been moving up in weight, so of course Im going to feel a little stronger and more energetic, Diaz said. When I fight at 170, especially if I fight three times a year, Im never really 100 per cent in any of those fights, because its so hard to (make) 170 pounds. Its hard to do that three times in a year, and then Ive never had a year off. Diaz is healthy and rested after his lengthy octagon absence, yet he again demonstrated his disarming candidness earlier in the promotion for this bout when he acknowledged he doesnt have much fun in his sport. With an enormous fight just a few days away, his opinion hasnt changed. Thats how it is, Diaz said. I enjoy a lot about it, a lot about mixed martial arts and jiu-jitsu and training with friends and people, but fighting is hard work. Its a hard job. 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