Williams sounds warning to rivals


World No. 1 Serena Williams says a fierce competitive streak keeps her motivated despite a decade of dominance, warning competitors Sunday that she is determined to extend her sparkling 2013 form.

Speaking in Brisbane where she will be defending the title she won earlier this year, Williams said she had kept her off-season to a minimum to avoid any impact on her momentum.

Williams had only four losses in a stellar 2013, a year that included her 16th and 17th Grand Slams at Roland Garros and the U.S. Open.

“I took a couple of weeks off, but I was already like kind of itching to get back on the court,” she said of her short off-season.

“I didn’t want to lose any rhythm or anything — didn’t want to lose momentum is the word I was looking for. I definitely wanted to move forward with that.”