A concertgoer sued Live Nation in 2024, alleging he suffered a traumatic brain injury during a Luke Bryan show at a US amphitheater the company operates.
Live Nation says São Paulo Arena will be Brazil's first purpose-built arena designed to the standards of the world's premier live entertainment venues.
Live Nation argued that a tying claim requires proof of harm to competition in the tied market, and that its rivals had not been shown to suffer such harm.
Live Nation and Ticketmaster contend the verdict is "against the weight of the evidence" and was swayed by material that should never have reached the jury.