Cristiano Ronaldo’s advanced age stands as the dominant factor shaping the 74.5% implied probability that he will not feature at UEFA Euro 2028. At 43, the Portugal captain would be among the oldest players ever to appear at the tournament, following a 2026 World Cup in which he confirmed it was his final appearance at that event while leaving post-tournament decisions open. His sister publicly described the 2026 tournament as his “last dance” with the national team, citing a reliable source, and Portugal’s coaching transition plus squad evolution favor younger forwards. Although Ronaldo maintains elite scoring output at Al-Nassr and has demonstrated remarkable durability, the physical demands of a major tournament two years later, combined with historical patterns of national-team retirements after age-40 campaigns, underpin trader consensus favoring a “No” outcome.