PREP SCHOOLS

GIRLS’ BASKETBALL: Rebecca Siegel’s 18 points led Berwick Academy (5-0) to a 46-39 EIL win over Beaver Country Day (1-2) at South Berwick.

Siegel scored nine in the second half, and Torie St. Pierre had five, as the Bulldogs pulled away from a 22-22 tie.

TENNIS

Djokovic and Williams are the year’s best, according to International Tennis Federation

Novak Djokovic and Serena Williams are the International Tennis Federation’s world champions for 2013.

Djokovic captured the men’s award for the third straight year. Williams won for the fourth time.

Djokovic started the year by winning a third straight Australian Open, and was runner-up at Wimbledon and the U.S. Open. The 26-year-old Serb finished the season No. 2 in the ATP rankings with seven tour titles.

The 32-year-old Williams won the French Open and U.S. Open in 2013 to end the year No. 1 in the WTA rankings for the first time since 2009.

American twins Bob and Mike Bryan were named men’s doubles world champions for the 10th time in 11 years, while Sara Errani and Roberta Vinci of Italy took the women’s doubles award.

• Djokovic said Wednesday that Boris Becker will join his staff for next season as head coach.

The 46-year-old Becker, a six-time Grand Slam champion, will travel with Djokovic to tournaments, including next month’s Australian Open.

SKIING

WOMEN’S WORLD CUP: Former overall World Cup winner Maria Hoefl-Riesch posted the fastest time in a downhill training session at Val d’Isere, France, while Lindsey Vonn was 12th-quickest in her comeback from injury.

Hoefl-Riesch clocked 1 minute, 49.30 seconds on the Olympique de Bellvarde course. Vonn, a four-time overall winner and the defending Olympic downhill champion, finished in 1:50.53.

Snowboarding

U.S. GRAND PRIX: In search of his second straight win on the halfpipe, Greg Bretz led all riders in qualifying at Copper Mountain, Colo., in the U.S. Grand Prix – the second of five selection events for the U.S. Olympic team.

Bretz scored 94 points in his preliminary run, 0.25 better than Ben Ferguson and Arthur Longo of France. The finals are Saturday.

Cycling

ROGERS DRUG TEST: Olympic bronze medalist and three-time world time trial champion Michael Rogers of Australia tested positive for clenbuterol after racing in China and has been provisionally suspended by the International Cycling Union while his national federation investigates.

Rogers tested positive at the Japan Cup on Oct. 20. The previous week he rode to an 11th-place finish at the five-day Tour of Beijing.

In a statement from Team Saxo-Tinkoff, Rogers said that he feared the positive test was the result of contaminated food. Clenbuterol is widely used in live stock farming in China.