More than 30,000 Gremio fans filled the Brazilian club's arena in Porto Alegre to welcome striker Luis Suarez.
The 35-year-old signed a two-year contract in a free transfer after his contract with Uruguay's Nacional ended.
Three-time Copa Libertadores winner Gremio are returning to Brazil's top-flight division after a shocking relegation in 2021.
It will be the eighth club in Suarez's career, which includes stints at Ajax, Liverpool, Barcelona and Atletico Madrid.
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