"The manager and both players immediately left the stadium and have returned home," read a club statement.
Messi's fresh attack comes after he was forced into a U-turn following his request to leave Barca this summer, but issued a communique accusing club President, Josep Maria Bartomeu of going back on his promise to allow him to leave.
The striker said that joining Atletico Madrid was an "attractive challenge" and that he had spoken to Antoine Griezmann and Uruguay international Diego Godin about the club.
He didn't play in Real Sociedad's game against Real Madrid on Sunday night in order to ensure he was not injured ahead of the move.
In the stoppage time, Zhang Yuning shot the ball into the net for Beijing, but the goal was disallowed due to offside after checking the VAR.
Martinez is unlikely to make many changes to the side that beat Alaves on Sunday with Darwin Machis and Roberto Soldado leading the attack, while veteran striker Jorge Molina will also play a part at some point in the game.
Brazil has the world's second-highest COVID-19 death toll behind the United States, with more than 139,000 fatalities. Enditem
"I have come to the difficult decision to skip the clay court swing this year and will be taking the remainder of the season off to focus on my health and my training," the world number seven said.
"We are now more than halfway through our journey but face an uphill battle ahead," the vice president and secretary-general of the Beijing 2022 Organizing Committee told Xinhua in an exclusive interview.
Brazil will meet Bolivia in Sao Paulo on October 9 and Peru in Lima four days later.
The Bavarian head of state Markus Soeder asked Bayern fans not to travel and instead to stay at home. "The Supercup is an exciting game, but it's not the most important one," the politician said after Hungary reported an incidence rate of up to 1.20.