Sports briefs: Serena Williams caps season with 11th title
tennis • Serena Williams ended her best season in style, rallying past Li Na 2-6, 6-3, 6-0 on Sunday in Istanbul for her second straight WTA Championship and 11th title of the year.
Williams sank to her knees after firing a backhand winner on her second match point. She became the eighth woman to win 11 or more titles a year and the first since Martina Hingis had 12 in 1997.
Williams struggled a day earlier to beat Jelena Jankovic and complained later of exhaustion after a long season.
"I felt good this morning, much better than I did yesterday," Williams said.
This was Williams' fourth WTA Championship. The tournament features the eight top-ranked players.
• Juan Martin del Potro denied Roger Federer his hometown Swiss Indoors title for the second straight year, winning the final 7-6 (3), 2-6, 6-4 in Basel.
Vettel wins fourth straight F1 crown
auto racing • Red Bull's Sebastian Vettel claimed his fourth straight Formula One championship Sunday after turning in a trademark clinical performance to win the Indian Grand Prix.
Starting from pole, Vettel dominated the Buddh International Circuit in Greater Noida to join F1 greats Juan Miguel Fangio and Michael Schumacher as the only drivers to win four consecutive championships. The only other driver to win four championships was Alain Prost. Vettel finished almost 30 seconds ahead of second placed Nico Rosberg in a Mercedes, with Lotus driver Romain Grosjean taking his second straight third place after starting from 17th on the grid.
U.S. women beat New Zealand
soccer • Megan Rapinoe, Carli Lloyd, Christen Press and Heather O'Reilly scored to help the U.S. women's soccer team beat New Zealand 4-1 in an exhibition game at Candlestick Park in San Francisco.
Hannah Wilkinson, a junior at Tennessee, scored for New Zealand.
The Americans improved to 12-0-2 this year. They extended their overall unbeaten streak to 37 games and their home unbeaten streak to 75, a stretch that dates to 2004.
From wire reports