West Ham United vs Portsmouth

West Ham United came from behind to beat Portsmouth 3-1 in their Carabao Cup first-round tie at London Stadium, turning a nervy start into a comfortable night thanks to a second-half surge from Valentín Castellanos. Portsmouth struck first when Adrian Segecic curled home from outside the box in the 33rd minute to silence the home crowd. West Ham hit back before the break, with Castellanos leveling things in the 43rd minute before Jarrod Bowen put the Hammers ahead right on the stroke of halftime. Castellanos then added his second with a header in the 50th minute to settle the tie. Yellow cards went to Edson Álvarez, Segecic, and Ebou Adams, but there were no red cards or penalties. The win sends West Ham into the next round and offers some early-season reassurance after Portsmouth's bright start had briefly threatened an upset. For Portsmouth, it's a case of pride salvaged but a cup run ended at the first hurdle.