The Rio de Janeiro Olympics opening ceremony on Friday will break with the recent tradition of large-scale and expensive shows, featuring a low-emissions cauldron and an "analogue" experience, executive producer Marco Balich said on Monday.
Dozens of fans fought a savage battle on the terraces at a Brazilian championship match on Sunday, interrupting play for more than one hour and leaving at least three people reportedly hospitalised in serious condition.
The WADA report also identified "systematic failures" at the IAAF, athletics' world governing body, which has been rocked by a French judicial investigation into fraud involving its former chief Lamine Diack and other senior officials.