Sports Log: US loses to Canada at junior hockey world championships

Hockey

Canada knocks off US at world juniors

Ryan Nugent-Hopkins and Ryan Strome scored in the first period as Canada beat the United States, 2-1, to advance at the World Junior Championship in Ufa, Russia. Jacob Trouba scored for the United States, which needs to beat Slovakia on Monday in Group B to move on. Canada faces Russia on Monday to determine which team gets a bye into the semifinals. Nugent-Hopkins, 19, the first pick of the 2011 NHL draft by Edmonton, had 52 points in 62 games for the Oilers last season. Slovakia stayed alive by beating Germany, 2-1, on an overtime power-play goal by Peter Ceresnak. In Group A, Finland beat Switzerland, 5-4, on a shootout goal by Markus Granlund, who also scored twice in regulation. The Czech Republic defeated Latvia, 4-2, to advance. Martin Frk scored twice.

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Basketball

Rockets’ White won’t go to D-League

Rockets rookie Royce White refused his assignment to Houston’s D-League affiliate, yet another setback to his return to the court. White, the 16th overall pick in the NBA draft, has spent most of the season on the inactive list while he and the Rockets figure out how to handle his anxiety disorder and overall mental health. White’s assignment to the Rio Grande Valley Vipers on Saturday looked to be a positive step, but on Sunday he released an almost 500-word statement where he said in part: ‘‘I have chosen to not play, because the doctors and I believe it to be unsafe for unqualified Rockets front office personnel to make medical decisions, as they are not mental health professionals.’’ . . . Fifth-ranked Indiana will have freshman forward Jeremy Hollowell back Monday night at Iowa. The NCAA cleared Hollowell of any potential infractions, two days after Hollowell and his family notified the school of a potential ‘‘compliance issue.’’

Tennis

Williams, Isner team to lead US to win

Venus Williams and John Isner led the United States to a 2-1 victory over South Africa at the Hopman Cup mixed team competition in Perth, Australia. Williams rallied to defeat Chanelle Scheepers, 4-6, 6-2, 6-3. After Kevin Anderson beat Isner, 7-6 (7-0), 7-6 (7-5), the match came down to mixed doubles. Williams and Isner beat the South Africans, 6-3, 6-2, to clinch the victory. Spain beat France, 2-1, after Fernando Verdasco and Anabel Medina Garrigues won the mixed doubles against Jo-Wilfried Tsonga and Mathilde Johansson. Andrea Petkovic, who retired with a right knee injury against Australia on Saturday, was diagnosed with a ruptured meniscus and will miss the Australian Open. She will be replaced by Tatjana Malek for Germany’s Cup matches against Italy and Serbia . . . Third-ranked Serena Williams opened the 2013 season in style, needing less than an hour to beat fellow American Varvara Lepchenko, 6-2, 6-1, in the first round of the Brisbane (Australia) International.

Winter sports

Richardson caps weekend with record

Speedskater Heather Richardson won her third title in three days at the US Long Track Championships in Kearns, Utah, setting a national record in the 1,500 meters. Brian Hansen won the men’s race. Richardson’s time of 1 minute, 53.84 seconds lowered the old mark of 1:54.19 set in 2009 by ex-Olympian Jennifer Rodriguez. She won the 500 on Friday with the fastest time in the world this year and won the 1,000 on Saturday, setting national records in both races . . . Ex-champion Anders Jacobsen of Norway won the opening stage of the Four Hills ski jumping competition in Oberstdorf, Germany, finishing ahead of defending champion and World Cup leader Gregor Schlierenzauer of Austria . . . Russia’s Maxim Vylegzhanin won the second stage of the Tour de Ski in Oberhof, Germany, and took the lead in the World Cup series. Defending champion Justyna Kowalczyk of Poland won the women’s 9K pursuit.

Miscellany

Jimenez breaks leg in skiing accident

Spanish golfer Miguel Angel Jimenez broke his right shinbone while skiing Saturday and will be sidelined for up to five months after undergoing surgery in his native Malaga. Jimenez, 48, was a vice captain on Europe’s Ryder Cup-winning team in September. In November, he became the oldest European Tour winner by capturing his third Hong Kong Open title . . . Texas A&M defensive end Damontre Moore will forgo his senior season to enter the NFL draft . . . Cain Velasquez (11-1) reclaimed the UFC heavyweight title Saturday night in Las Vegas, battering Junior dos Santos (15-2) on the way to a lopsided unanimous decision in UFC 155. Dos Santos took the UFC belt away from Velasquez in November 2011 in 64 seconds, earning a first-round stoppage win in Anaheim, Calif.