Americans Rodney Morris, Charlie Williams and Vivian Villarreal will take U.S. medal hopes into quarterfinal matches today at the World Games in Duisburg, Germany.

In men’s 9-ball, Morris, who routed Aruba’s Roland Acosta, 11-4, on Wednesday, will face Germany’s Thomas Engert, and Williams, an 11-7 winner over Japan’s Massashi Hoshi, will battle Vangelis Vettas of Greece. Vettas shocked Germany’s Ralf Souquet, 11-10, in the opening round of the 16-player single-elimination event.

Villiarreal, the lone U.S. competitor in the women’s 9-ball division, faces Korea’s Sung-Hyun Jung. Defending champion Jeanette Lee pulled out of the competition at the last minute because of impending back surgery.

Sweden’s Tom Storm, Germany’s Thorsten Hohmann, Holland’s Neils Feijen and Chinese star Pei-Wei Chang round out the final eight in the men’s division.

Top-ranked Allison Fisher, Taiwan’s Jennifer Chen, Italy’s Tiziana Cacciamani, Austria’s Jasmine Ouschan, Japan’s Yukiko Hamanishi and former WPBA regular Line Kjorsvik of Norway make up the remaining women competitors.

Men’s carom billiards and men’s snooker is also being contested at the international sports festival, which is seen as an important stepping stone for the cue sports’ Olympic Games hopes. Two high-ranking officials, Kelly Fairweather, Sports Director of the International Olympic Committee (IOC) and Ron Froelich, President of the International World Games Association (IWGA), were on hand at the Saalbau arena in Bottrop for the opening matches of the billiard competition.