The Cong Viettel pulled off a minor upset by defeating defending champions Hanoi FC 1-0 in the V.League 1 on March 1, 2026. At Hang Day Stadium, Viettel's disciplined defensive performance and a first-half goal were enough to sink the capital city giants. The only goal of the game came from a swift counter-attack, finished calmly by Viettel's winger after a defensive mistake from Hanoi. The reigning champions dominated possession for the remainder of the match but found it impossible to break down Viettel's compact and organized defensive block. Hanoi's best chance came from a penalty, but their star striker saw his effort saved brilliantly by the Viettel goalkeeper. This match result sent a shockwave through the league, showing that the champions are beatable and announcing Viettel as a potential dark horse. The Viettel manager dedicated the win to the club's soldiers and fans.