Reigning champions United States and hosts Spain were hardly challenged on Saturday in advancing to the quarter-finals of the 2014 FIBA Basketball World Cup while Slovenia and France also joined them in the final eight. Stephen Curry's 20 points paced five players in double figures as the United States eased past rivals Mexico 86-63 in the last 16. Curry's Golden State Warriors teammate Klay Thompson added 15 points while captain James Harden hit for 12.