STANFORD, Calif. -- For nearly 9 minutes, Arizona made defensive stop after stop. In that critical sequence, the top-ranked Wildcats held Stanford scoreless and helped preserve their perfect start to the season. This confident, unbeaten group believes it should be doing that all game long. For Arizona, three straight defensive stops is called a "kill." Nick Johnson kept Arizonas unblemished record going for another game, hitting a go-ahead 3-pointer with 51 seconds remaining and two free throws with 5.8 seconds left as Arizona survived for a 60-57 victory Wednesday night for its school-record 21st straight win. "Were an outstanding defensive team. It isnt as if we changed any scheme, we just buckled down and had a lot of players playing very hard, and our ability to hold them to what we did is a big reason we won. Our defence won the game tonight," Arizona coach Sean Miller said. "No question we have to execute better on offence and we have to be more confident at the line." After Johnson hit a jumper in the middle of the key with 2:36 remaining to make it 55-53, Dwight Powell answered on a baseline drive with 1:21 to go before Johnson delivered once more. Johnson finished with 16 points, five rebounds and four assists and T.J. McConnell added 11 points, eight rebounds and four assists for Arizona (21-0, 8-0 Pac-12), off to the programs best start in conference play in more than a decade. Arizona is one of three unbeaten teams left in Division I, joining No. 2 Syracuse, which also won Wednesday night. Fourth-ranked Wichita State hasnt lost either. Powell and Josh Huestis each scored 13 points for Stanford (13-7, 4-4), which outshot Arizona 38 per cent to 36 per cent. "For 38 minutes, I thought we were right there," Stanford coach Johnny Dawkins said. "Credit Arizona for making the plays they had to make at the end. Nick Johnson stepping up, whether at the foul line or whether it was a 3-point bucket late. Ive watched a lot of tape of them, hes done it all year." Johnson missed a free throw with 28 seconds left and Stanford called timeout. Huestis missed a 3 from the left wing and Aaron Gordon secured the rebound, but he also missed a free throw giving the Cardinal one final shot. Chasson Randle missed a long 3 just before the final buzzer for Stanford. After a 3-pointer by Huestis with 10:03 remaining, Stanford didnt score again until Powells layin at 1:21 -- and Powell missed two free throws at 4:36 that would have put his team ahead. "Thats what we should have done the whole game. We came out a little lackadaisical and after that we turned it up when the sense of urgency turned up, and after that we kind of locked down," Gordon said. "It was good to come on the road and get a win, regardless of whether we won by 20 or we won by three like we did." Arizona, ranked No. 1 for a school-record eighth consecutive week, overcame a slow start on the way to an eighth straight win against Stanford. The Cardinal beat two Top 25 teams already with victories at then-No. 10 Connecticut and at then-No. 17 Oregon earlier this month. But not this time given their struggles in the waning moments at Maples Pavilion, which hosted a No. 1 mens team for the first time since losing 72-69 to Arizona on March 1, 2003. The Wildcats had a large contingent of fans in the crowd cheering "U of A! U of A!" Anthony Brown beat the halftime buzzer with a basket to put Stanford ahead 31-30. Arizona had trailed at halftime several times already this season only to produce a big second half. Arizona is on such a roll the players expect to win, even when they might not be at their best in a hostile environment. "One of the things we need to do is play defence at a high level more consistently and I think that will help us out a lot," forward Brandon Ashley said. "When we were down, we werent thinking about being down. For any team to be competitive, at any level, you have to be confident in yourself." Stanfords last home win against a No. 1 team came against Arizona, 82-74, on Feb. 4, 1988. Marquise Brown Jersey . Sharper briefly appeared in Los Angeles Superior Court, where his arraignment was postponed until Feb. 20 at the request of his lawyers. They issued a statement saying he would be exonerated. Prosecutors then filed a motion to increase Sharpers bail to $10 million and outlined details of investigations involving him in Las Vegas, Tempe, Ariz. Lamar Jackson Jersey . The injury could land Machado on the 15-day disabled list, but its not as serious as it looked on Monday night, when the third baseman crumpled in a heap at the plate after taking an awkward swing in a game against the New York Yankees. http://www.ravensrookiestore.com/Ravens-...erguson-Jersey/. Alvarez hit his first career home run, pitched six innings and hurt his right hamstring while running the bases in the Miami Marlins 4-3 win over the Chicago Cubs. Iman Marshall Womens Jersey . PAUL, Minn – The clock lingered for what seemed like an interminable two minutes and 51 seconds before Mark Fraser finally escaped to the bench during a wildly one-sided first period of an eventual loss to Boston. Ben Powers Youth Jersey . His absence against the Celtics comes a day after he scored 43 points in the Heats 100-96 win at Cleveland.DUBLIN, Ohio -- Tiger Woods withdrew from the U.S. Open on Wednesday as he recovers from back surgery that has kept him out of golf for nearly three months. It will be the second U.S. Open, and sixth major, he has missed because of injury over the last six years. The U.S. Open is June 12-15 at Pinehurst No. 2, where Woods tied for third in 1999 and was runner-up in 2005. The announcement on his website was not surprising. A week ago at a promotional event for the Quicken Loans National at Congressional, Woods said he still had not taken a full swing with a golf club and did not know when he could. He had microdiscetomy surgery to relieve a pinched nerve on March 31. "Unfortunately, I wont be there because Im not yet physically able to play competitive golf," Woods said. "Id like to convey my regrets to the USGA leadership, the volunteers and the fans that I wont be at Pinehurst. The U.S. Open is very important to me, and I know its going to be a great week." Woods last played on March 9 at Doral, where he closed with a 78 while suffering what he called back spasms. He withdrew in the middle of the final round at the Honda Classic with back pain a week earlier. Woods is a three-time U.S. Open champion, one short of the record shared by Jack Nicklaus, Ben Hogan, Bobby Jones and Willie Anderson. His most recent U.S. Open victory was in 2008 at Torrey Pines, where he won in a playoff over Rocco Mediate a week before he had season-ending knee surgery. That was his 14th victory in 46 majors, a winning ratee of 30 per cent as a pro.dddddddddddd He has not won a major since Torrey Pines, leaving him four short of Nicklaus record. Woods missed the British Open and PGA Championship after knee surgery in 2008. He missed the U.S. Open and British Open while allowing leg injuries to heal in 2011. He missed the Masters for the first time in April because of back surgery. Nicklaus said earlier Wednesday that Woods health would be the biggest obstacle in breaking his record in the majors. Woods called Nicklaus earlier Wednesday to express regrets about missing the Memorial, and Nicklaus said that Woods indicated he was making progress. "If hes healthy, I think Tiger has got 10-plus years to play top quality tournament golf," Nicklaus said. "And Ive said many times, hes got a little over 40 tournaments to play the major championships; hes only got to win five to pass my record. As good a player as he is, I dont think that should be a big deal. But then again, hes got to do it. Plus, hes also got to be healthy to be able to do it." Woods has not indicated when he might be able to return to competition, saying that would be up to his doctors and how he recovers from the surgery. "Despite missing the first two majors, and several other important tournaments, I remain very optimistic about this year and my future," he said. While Woods wont be at Pinehurst, niece Cheyenne Woods will be there the following week for the U.S. Womens Open. She earned a spot Wednesday in qualifying in Scottsdale, Arizona. ' ' '