Portugal hold an overwhelming structural advantage over Congo DR — a top-5 world ranking, elite squad depth across all lines, and a clean preparation process compared to Congo DR's disrupted isolation camp. The 293-point FIFA ranking gap is one of the clearest quality signals available and, in the absence of H2H data or form records, it is the dominant factor. The high humidity and heat in Houston are a potential equalizer in stamina terms but are unlikely to bridge a gap this large; Portugal's squad, drawn predominantly from elite European clubs, should have the physical quality to manage the conditions. A comfortable Portuguese win is the most probable outcome, with a clean sheet also likely given the attacking firepower available to Martínez's side.