The playmaker had his contract with Gremio rescinded on Monday after publicly falling out with president Romildo Bolzan amid the club's poor start to the season and his own indifferent form.
"Staying at the top might be much harder than getting to the top. One has to consider all the possible details both on and off the pitch."
Roma's Lorenzo Pellegrini (R) vies with Hellas Verona's Davide Faraoni during a Serie A soccer match between Hellas Verona and Roma in Verona, Italy, Sept. 19, 2020. (Photo by Alberto Lingria/Xinhua)
"I always thought when I did leave that I would love to come back one day, the opportunity has now arisen and I feel like it is a good fit at a good time. I am hungry and motivated to do well for the team. I can't wait to get started," said Bale, who will wear the number 9 shirt.
Middle blocker Wang Yuanyuan also returned from the national team to join Tianjin in their quest for the title.
The 79,000-seat Maracana, which hosted the World Cup deciders in 1950 and 2014, was this month described as having the worst playing surface in Brazil by Flamengo vice-president Marcos Braz.
"Our players are highly motivated to beat their opponents on Sunday. We are Esteghlal and can benefit from our previous experience in the competition," he added.
According to the season's CSL rules, the best four teams from Group A and Group B will compete in the second session.
The match ended 1-1 at full-time, and both sides had opportunities to win in a penalty shoot-out but Qian Jiegei hit the bar while R&F scored all five to seal the win.
In the Hazfi Cup final on September 3, Tractor beat Esteghlal 3-2. Enditem
17-year-old Giovanni Reyna said the title is essential while managing director Michael Zorc is tracking Manchester City talent Jamie Bynoe-Gittens.