Top 5 Photos, July 21: A relaxed Djokovic back in Tokyo


Two-time Grand Slam winner Garbine Muguruza was among those who practiced Wednesday in Tokyo.


German Jan-Lennard Struff trained with countryman Philipp Kohlschreiber.


The Olympic flag flies above the Ariake Tennis Park.


World No. 1 Novak Djokovic enjoyed his first day back in the Japanese capital, where he triumphed in 2019.


Dayana Yastremska looks over during her team's practice session Wednesday.