Olympic Tennis Day 7: Djokovic Stunned, USA Misses Out on Hardware

Karen Khachanov (ROC) def. Pablo Carreno Busta (ESP) The Russian Olympic Committee's Karen Khachanov upset Spain's Pablo Carreno Busta 6-3, 6-3. The No. 12-seeded Khachanov hammered 10 aces in the 79-minute effort. Alexander Zverev (GER) def. Novak Djokovic (SRB) With his 6-1, 3-6, 1-6 semifinal loss to Germany's Alexander Zverev...