Messi’s advancing age stands as the central factor weighing on the 29.5% implied probability he captures the 2027 MLS Golden Boot. At 39 during the abbreviated February-to-May Sprint Season, the Inter Miami star faces heightened risks of fatigue and selective rest, especially after managing muscle overload earlier in 2026 and balancing Argentina commitments. While he leads the 2026 scoring charts with 19 goals, younger forwards such as Petar Musa and Sam Surridge have closed gaps with consistent output, and historical patterns show few players maintain elite goal tallies into their forties. Traders price in these physical and competitive realities over Messi’s proven finishing touch, viewing an upset as possible only if he avoids injury and Inter Miami’s attack remains dominant in the shortened campaign.