Even without racquet in hand, Nishikori is problem-solver.
Serena's dominance, Novak's quest and top Olympic contenders highlight our preview.
It was over in a few seconds, but left a long-lasting impression on Murray.
Genie's guided tour of life at the Rio Olympics.
Grand Slam king is both inspiration and instructor to Dimitrov.
A meeting of legends takes place in the Olympic village.
Serena Williams seeded first in singles and doubles with sister Venus Williams.
