Following an entertaining opening day of tennis at the 2016 Summer Olympics in Rio de Janeiro, things kicked into high gear on the men's side Sunday, with several of the world's top players competing in both singles and doubles action.
World No. 1 Novak Djokovic, defending Olympic singles gold medalist Andy Murray and nine-time French Open champion Rafael Nadal were among those scheduled to take the court in Brazil.
Here is a full rundown of Sunday's results thus far along with a recap of how the most notable matches have played out to this point.
Men's Singles Results
Recap
The first match on Sunday's slate yielded heartbreak and disappointment for one of the draw's most exciting players in Germany's Dustin Brown.