This is the marquee fixture of the entire group-stage opening weekend — and arguably the most tactically absorbing match of WC2026 Group C. Brazil enter as FIFA #6, five-time world champions under their first-ever foreign manager Carlo Ancelotti, deploying a lethal 4-2-3-1 with Vinicius Jr, Raphinha, and a recalled Neymar. Morocco arrive as FIFA #8 — having beaten this exact Brazil side 2-1 in March 2023 in Tangier — and carrying the spine of the 2022 Qatar semi-finalists. Under new coach Mohamed Ouahbi (only appointed March 2026), Morocco's 5-4-1 mid-block is specifically designed to absorb Brazil's pressure and punish on the break through Hakimi's overlapping runs and Brahim Díaz's creativity. Key concerns for Brazil: Rodrygo (ACL), Estêvão, Eder Militão and Wesley all injured; Neymar battling a grade-2 calf strain and fitness doubts; full-back depth thin. For Morocco: new manager with just 2 senior games; Nayef Aguerd injury doubt; first-ever competitive meeting = unknown dynamic. Odds: BRA 1.62 (56% implied) vs MAR 5.25 (+425) vs Draw 4.00 (+300). Markets strongly back Brazil — but Morocco's record against elite nations demands respect. Our pick: Brazil edge it 2-1 with Vinicius the decisive figure, though a 1-1 draw is the single most tempting alternative outcome.