Defending champion Andy Murray survived a scare to reach the Olympic men's singles quarter-finals but Johanna Konta exited the women's singles.
Murray fought back after losing eight successive games to register a 6-1 2-6 6-3 victory over Italian Fabio Fognini.
He and Heather Watson then completed a 6-3 6-3 win over Spain's Carla Suarez Navarro and David Ferrer in the mixed doubles.
Neymar, left, and Gabriel Jesus celebrate after scoring a goal in an Olympics win versus Denmark. Getty Images
Host nation Brazil finally broke out of an Olympics scoring slump to beat Denmark 4-0 and advance out of the group stages.
Gabriel Barbosa scored for the Selecao in the 26th minute to register the first goal for his country during the tournament thus far.
Britain's Johanna Konta won a dramatic contest with Svetlana Kuznetsova to reach the Olympic quarter-finals, after Andy Murray eased into the last 16.
Konta, ranked 13th in the world, converted her fourth match point to beat the Russian eighth seed 3-6 7-5 7-5 after three hours and seven minutes.
Brazil's Rafaela Silva celebrates after winning the gold medal of the women's 57-kg judo. Courtesy of www.dailymail.co.uk
Brazil won their first gold medal of the Rio Olympics as Rafaela Silva triumphed in the women's 57kg judo.
Silva defeated world number one Sumiya Dorjsuren of Mongolia by Waza-ari to delight a partisan crowd at Carioca 2.
Novak Djokovic (left) has never won an Olympic title
Novak Djokovic suffered another Olympics defeat as he and 40-year-old team-mate Nenad Zimonjic exited the men's doubles in round two.
The Serbs lost 6-4 6-4 to Brazilians Marcelo Melo and Bruno Soares in Rio.
