His nickname in the sport was Popof.[1] The American-French journalist René de Latour jokingly said in the British monthly Sporting Cyclist that it was because of his habit of attacking alone, or "popping off". De Latour, however, depended too heavily on his readers' understanding of French slang, because Popof is a semi-derogatory term in French for someone of Polish background. The "popping off" suggestion, however, is still widely believed and appears from time to time in histories of the sport.
