A Frenchman of American heritage, he is fluent in English in addition to his native French, and can also speak Spanish, Italian and German,[1] which helped him in his career as he was able to interview various international athletes.

Among his most famous interviews are that of Martina Navratilova in 1987,[2] Carl Lewis, Bill Clinton at Roland Garros in 2001 and sprinter Michael Johnson during the Olympic Games in Atlanta.

He also hosted the game shows Jeux Sans Frontières in 1999 (with Fabienne Égal), Une semaine chrono in 2006 (with Pierre Mathieu) and Intervilles (with Philippe Candeloro).

[3] In June 2009, Monfort was criticized by some journalists' unions within France Télévisions for interviewing "Mickey Mouse" on his TV show Tennis Club.

He described the object as a "shiny rectangle" that was "making no sound at all" and eventually "did a 45-degree turn and flew amazingly fast into the sky".