Club Nacional de Football, known as Nacional de Manaus, is one of four teams striving to maintain an impressive 100% winning record in the Brazilian Championship Série D. Alongside Gama, Juazeirense, and Blumenau, the club from Amazonas stands out in the national competition, promising excitement in the fourth round.

Leading Group A1 with 9 points, Nacional de Manaus will face Manauara this Saturday at 4:30 p.m. at the Colina stadium. This clash is crucial for the Amazonian team to consolidate its position and continue its perfect campaign in pursuit of promotion.

Another highlight is Blumenau, which leads Group A16. The team from Santa Catarina will visit Marcílio Dias on Saturday at 5 p.m. at Gigantão das Avenidas, in a match that will test its unbeaten away record.

In Group A3, Gama will play a local derby on Sunday against Brasiliense at 4 p.m. at Boca do Jacaré. This "derby" promises to be one of the hottest matches of the round, with Gama looking to maintain its lead.

Completing the undefeated quartet, Juazeirense, leader of Group A10, will host ASA on Sunday at 3:30 p.m. at Adauto Moraes. The team from Bahia hopes for the support of its fans to continue its impeccable campaign.

The fourth round of Série D will feature 48 matches across its 16 groups, each made up of six clubs. The ability of Club Nacional de Football (Manaus), Gama, Juazeirense, and Blumenau to sustain their 100% records will be the main storyline this weekend, with all eyes on these decisive encounters.