In a showdown between two clinical power-hitters, Osaka and Brady split the opening two sets, with Osaka claiming the tiebreak in the first and Brady taking the sole breaking chance in the second.
New Arsenal signing Willian chipped in with two assists as Gabriel, another Brazilian debutant, netted the second with a header shortly after the break before Arsenal captain Pierre-Emerick Aubameyang rounded off an easy win before the hour.
Iran will play Uzbekistan on October 8 in a friendly match in Tashkent and four days later they will face Tajikistan in Tehran.
Paulinho put Yang Liyu's cross home in the 27th minute to break the deadlock.
Fernandinho created the third goal of Chongqing six minutes later, breaking the rivals solid defense as a left-winger and helping Mierzejewski fire in close range through an accurate low pass.
The visitors pressed frenetically for a goal and were rewarded in the 23rd minute when Dodi Lukebakio nodded home a corner kick from close range to halve the deficit.
The tournament which is part of the European Tour has been moved to 2021, returning to a March date which has been a tradition since the first Kenya Open Championship in 1967.
Evergrande doubled the lead in the 69th minute with a stunning free kick from Ai, two minutes after his tap-in was ruled out due to off-side.
Florian Thauvin's close-range volley set up by Dimitri Payet in the 31st minute punished the defending champions to a two-game losing streak in the opening two weeks of the Ligue 1 campaign, the first time the capital-based club has lost its first two games in a season since 1984-1985.
Xiamen Tefang cruised past Jiangsu Weikeduo 4-1 to move up to fourth, leaving its opponent at the bottom with no wins this season, while fifth-placed Shenzhen Nankeda crushed Anhui Souyu 5-0.
Cody Gakpo earned PSV a 1-0 lead shortly after Robben left the pitch. After a mistake by PSV goalkeeper Yvan Mvogo, FC Groningen substitute Tomas Suslov equalized, but Donyell Malen answered quickly with a goal on an assist by Noni Madueke. After a missed penalty by Malen Gakpo, he decided the match with his second goal from a counter attack to make it 3-1 for PSV.