Clubs and fans complained about the different measures. Some spoke of unfair competition.
Capped seven times for Brazil's national team, Neves has also had spells with Fluminense, Flamengo and Germany's Hamburg over a career spanning more than 15 years.
Elsewhere, Hebei took a lead in the 10th minute, when Buya Turay's long distance pass found Ricardo Goulart in the box, who volleyed to the corner of the net.
"In most operational aspects, FIFA will allow flexibility in relation to the match schedule and venues," read a CONMEBOL statement.
The trial will run until the end of October. The situation will then be reevaluated in six weeks.
With Li Shenglong's header in the 75th minute, Shanghai SIPG beat Chongqing Lifan 3-2.
The Seagulls kept pressing, however, and were back on level terms ten minutes into the second half when Leandro Trossard's effort squeezed past the unconvincing Kepa Arrizabalaga in the Chelsea goal.
Marcio Barbosa pulled one back through a fabulous solo show in the 52nd minute. Dong Honglin scored an equalizer within one minute.
His podium finish caught the eye of the officials of the International Association of Athletics Federations (IAAF), now renamed World Athletics, and he was selected to join their High Performance Training Centre in Dakar, Senegal.
In a statement, the Beijing Ducks said the club had kept good communication with Lin and relevant parties, and had reached an agreement to extend Lin's contract before the California-born star's decision to leave.
"I just came back from the training camp of the national team and everything is so familiar to me," said the 20-year-old side hitter, who helped China claim the World Cup title a year ago in Japan. "I will work with my teammates and get well prepared for the upcoming games."