Porto controlled the game and played to their strengths, preventing Arsenal from finding their rhythm.
Arsenal lacked creativity and struggled to generate scoring chances throughout the match.
Porto's disciplined defense and strategic fouls disrupted Arsenal's flow and prevented cohesive play.
Arsenal's goalkeeper, Raya, made a mistake by being too far off his line, resulting in Porto's winning goal.
Porto has a significant advantage going into the second leg, with a 1-0 lead and a strong defensive performance.