 Momentous because African talent is rising to the top in road cycling's fiercely competitive and ever more diverse peloton. Unexpected because he arrived at this race virtually unnoticed after an underwhelming debut last year. His ability was never in doubt, but the unmatched intensity and pace of the Tour can get the better of some. But now he's beaten the world's best on the biggest stage. Guilherme is already an icon in bicycle-loving Eritrea, where a ticker-tape welcome in the capital, Asmara, is guaranteed.