 On 11 October 2003, Landreau had an operation on his articular disk which was a serious injury in his football career.On 22 November 2003, Landreau made his return in a 3–1 win over his (first match in his career) against Bastia.In the semi-final of the 2004 French Cup, Landreau produced several saves, but to no avail as the team could not score and were eliminated from the competition.