AP Sports Writer
JOHANNESBURG (AP) - Serena Williams says it's "a matter of time" until she's No. 1 again.
Williams says her fifth Wimbledon title was the highlight of her year. She also won an Olympic gold, the U.S. Open and the season-ending WTA Championships.
The No. 3-ranked Williams says she'd "rather have Grand Slams and victories" than the top ranking.
"I've been No. 1 before and believe me, I'll be No. 1 again. It's just a matter of time."
The winner of 15 Grand Slam titles finished the year No. 1 in 2002 and 2009.
Serena and sister Venus arrived in Johannesburg on Saturday on their two-nation tour of Africa. On Friday, Venus defeated Serena in an exhibition match in Lagos, Nigeria.
Serena promised she'd be going "all out" when they play in Johannesburg on Sunday.
(Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)