Arsenal secured a convincing 4-1 victory over Portsmouth in the FA Cup third round on Sunday, January 11, 2026, with Gabriel Martinelli emerging as the hero, scoring his first senior hat-trick. The match, played at Fratton Park, saw Arsenal overcome an early scare when Portsmouth's Colby Bishop put the League One side ahead in just the third minute. However, Arsenal quickly responded, equalizing five minutes later through an Andre Dozzell own goal that resulted from a corner, showcasing their growing proficiency from set-pieces. Martinelli then put the Gunners in front in the 25th minute with a header from another corner delivered by Noni Madueke. Despite Madueke missing a penalty just before halftime, Arsenal extended their lead in the second half. Martinelli completed his hat-trick with two more goals, including another from a corner, sealing Arsenal's comfortable progression to the fourth round of the FA Cup. Manager Mikel Arteta made several changes to his squad, and despite the initial setback, his team's depth and set-piece strength proved decisive against a spirited Portsmouth side.