Grêmio and Centro Sportivo Alagoano (CSA) played out a goalless draw in the first leg of their Brazilian Cup tie on May 21, 2025, leaving everything to play for in the return match. The stalemate was a frustrating result for the home side, Grêmio, who dominated possession but failed to break down a disciplined CSA defense. Grêmio created the better chances throughout the match, hitting the woodwork in the first half and seeing a goal ruled out for a marginal offside after a VAR review in the second. CSA offered little in attack but executed their defensive game plan perfectly, frustrating Grêmio's forwards and earning a valuable clean sheet away from home. The match result sets up a finely balanced second leg, with CSA now holding a slight advantage knowing a scoring draw at home would see them through. The Grêmio manager expressed disappointment at his team's lack of finishing, while the CSA coach was delighted with his team's tactical discipline and commitment, highlighting the result as a positive step for the club.