De Ronde van Frankrijk

He also gave famous politicians of the day a cameo appearance, including characters from his other comics series and the over-worked artist himself.

In 1948 he travelled along with the other journalists and the Belgian team leader Romain Maes, but on all other occasions he remained at home, while listening to the live radio report.

When his cartoon was finished Sleen waited for a motorcyclist to pick up his drawing and drive back to the newspaper's office in Ghent, so it could be published in the extra sports edition later that evening.

In 1992 all the cartoons were compiled into Frans Lodewijckx' book De Grote Rondes van Marc Sleen.

Each chapter was enriched with commentaries of the newspapers' best reporters: Michel Casteels, Jan Cornand, Jérome Stevens, Willy Hofmans and André Blancke.