Japan returned to the top of the men’s gymnastics world, beating Russia and China in the team event.  The event was a renewal of the longtime gymnastics rivalry between Japan and China. China had won the last two gold medals, in 2008 and 2012. But Japan had Kohei Uchimura, the world’s best gymnast — and perhaps the best of all time — anchoring their team.  In the final rotation, Japan took on Russia head-to-head in the floor exercise, holding a slim lead of 0.208 points. Japan went first. After an outstanding score from Kenzo Shirai and a good one from Ryohei Kato, Uchimura locked down the win with a 15.6. Combined, it was the best team floor exercise score of the night. Russia finished second, and China took the bronze.  A second Olympic boxer has been arrested and jailed on charges of sexual assault, a Brazilian police official said Monday, raising concerns over safety at the athletes’ village for the locals who work there.  The arrest of the boxer, Jonas Junius of Namibia, came on Sunday after a judicial order requesting it. The authorities transferred Junius from a police precinct to a maximum-security prison in Rio de Janeiro on Monday, said a police official, Rodrigo Moreira. The accuser was Brazilian, Moreira said.  The boxer “attempted to grab and kiss the cleaning lady” in the hallway of the 11th floor of a building in the Olympic Village on Sunday, the Rio de Janeiro state civil police said in a statement. The woman immediately contacted the police, Moreira said.  The arrest came just two days after the Moroccan boxer Hassan Saada was arrested on similar charges, which led to his missing an Olympic bout Saturday and being disqualified for the rest of the Rio Games. He has been transferred to the same prison Junius was sent to on Monday and is serving a 15-day preliminary prison sentence.  Junius, who carried his country’s flag in Friday’s opening ceremony, was scheduled to fight Hassan Amzile of France on Thursday in a light-welterweight bout in the round of 32.— VINOD SREEHARSHA
The American swimmers Lilly King and Ryan Murphy set Olympic records, and Japan reclaimed the men’s gymnastics title.