Top favourites United States and world champions Germany remained on course towards meeting in the Olympic men’s basketball final by reaching the semi-finals on Tuesday. The star-studded US team were all over Brazil in a 122-87 triumph while Germans outlasted Greece 76-63 after a poor start. Both now face opponents on Thursday they beat in the group stage and in pre-Games tune-ups. The US will be up against World Cup runners Serbia who overcame a 24-point deficit in the first half to beat Australia 95-90 in extra time. Germany face another date with hosts France who beat fancied Canada 82-73 e…