As the Brasileirão Série D heats up, nine teams are gearing up for a crucial round with their unbeaten records on the line. After six matches, these squads have managed to stay perfect, and this weekend's fixtures promise plenty of drama for fans across Brazil.

In Group A1, Manauara-AM will look to extend their streak when they face Nacional-AM on Saturday at 5 p.m. at the iconic Arena da Amazônia in Manaus. Meanwhile, Group A2 features a doubleheader on Sunday: Guaporé-RO takes on Gazin Porto Velho at 4 p.m. at Aluizão, followed by Araguaína-TO traveling to Independência-AC at 6 p.m. at Arena da Floresta.

Over in Group A3, Gama-DF has a local derby on their hands as they host rivals Brasiliense-DF on Saturday at 7:30 p.m. at Bezerrão. Group A4 sees Goiatuba-GO hitting the road to face Mixto-MT at Dutrinha in Cuiabá on Saturday at 6 p.m.

Further north, Águia de Marabá-PA from Group A5 will battle Tuna Luso-PA on Sunday at 4 p.m. at Modelão in Castanhal. In Group A6, Iguatu-CE visits Maracanã-CE on Saturday at 3:30 p.m. at Prefeitão.

Rounding out the action, Group A9's Serra Branca hosts Treze-PB at Amigão on Saturday at 4:30 p.m., while XV de Piracicaba faces Maricá-RJ on Saturday at 5 p.m. at João Saldanha. With so much at stake, this round is a must-watch for any football fan—and a perfect excuse to gear up in your favorite team's colors!