Taiwan's Lu Yen-Hsun upset South African top seed Kevin Anderson 7-6 (8/6), 6-3 Wednesday to reach the quarter-finals of the ATP Delray Beach Open. The 61st-ranked Asian standout dropped only 12 points on his serve to advance in 78 minutes despite 12 aces and a 72 percent first-serve connection rate by the world number 15 in a losing cause. Lu captured the first-set tie-breaker and exchanged the first service breaks of the match to open the second set, then broke Anderson in the sixth game for a 4-2 edge.