• Roddick lifts U.S. in Davis Cup: Andy Roddick defeated Paul Capdeville 3-6, 7-6 (2), 6-3, 6-3 Sunday, giving the United States an insurmountable lead in a 4-1 win in the Davis Cup first-round series against Chile in Santiago, Chile. Roddick is 12-0 in matches that can clinch a Davis Cup series for the United States. He has played in 24 career ties since 2001 and has a 33-11 record. “It’s always sweet, and every time you clinch one you think it’s the sweetest,” Roddick said. “I think it’s also pretty satisfactory when everything is stacked against you — you got the (clay) court, the crowd. It’s a mental grind and you have to try and ignore everything.” The Americans will play Spain in the quarterfinal round in July in the U.S. The Spanish team led by Rafael Nadal beat Belgium 4-1 this weekend.

• ITF confirms world-record serve: The International Tennis Federation confirmed Sunday that Ivo Karlovic of Croatia broke the world record for the fastest serve. He struck a 156 mph serve in the fourth set of a doubles match against Germany in the Davis Cup on Saturday in Zagreb, Croatia, breaking Andy Roddick’s previous record of 155 mph. “I noticed that while serving, saw it on the screen,” said the 6-foot-10 Karlovic, the tallest player on the ATP circuit. “It is really great.”

• Pavlyuchenkova wins in final: Second-seeded Anastasia Pavlyuchenkova of Russia defeated top-seeded Jelena Jankovic 2-6, 6-2, 6-3 on Sunday to defend her title at the Monterrey Open in Mexico. Pavlyuchenkova broke Jankovic in the seventh game to lead 4-3 in the final set. She then held serve and broke again in the final game, thanks partly to a double fault by Jankovic, to close it out.

• Dokic takes Malaysian Open title: Australia’s Jelena Dokic beat Lucie Safarova of the Czech Republic 2-6, 7-6 (9), 6-4 in the Malaysian Open on Sunday to earn her sixth career WTA singles title after a nine-year drought. Dokic needed 2 hours, 40 minutes to claim her first WTA singles championship since June 2002. The Croatian-born Dokic drifted away from the WTA tour from 2004 to ’08. She’s ranked 91st after a high of No. 4.