After winning all eight titles she has contested at the past four World Championships, China's diving queen Guo Jingjing is looking to dominate the World Championships a fifth time in Roma from July 18 to Aug 1.

The world and Olympic champion will again compete in the 3m springboard and 3m synchronized event after returning in typically winning style to competition last month, according to a line-up for Rome worlds just released by Chinese Swimming Association.

After the Beijing Olympic Games, when Guo claimed her third and fourth Olympic gold medals, the diving super star enjoyed six months off, shooting advertisements and attending various social activities until making a return in triumphant style at the fifth stop of the 2009 Diving Grand Prix in Fort Lauderdale (US) early last month.