Bocaly returned to Marseille's first-team squad under new manager Didier Deschamps, but was injured in pre-season and warned that he would need to be patient, with Laurent Bonnart established as first choice at right back. It took until 31 October for him to play his first game of the season, starting at right back in a 1–1 draw with Toulouse. According to "Foot 365" report, he struggled defensively but was positive going forward, and was involved with Brandão's equalising goal. Deschamps introduced him into the team for Toulouse to get him used to the position because Bonnart was suspended for the Champions League group stage fixture three days later. Bocaly duly made his Champions League debut in the 6–1 win against FC Zürich; he played the whole match, and produced what UEFA's match reporter called an "exquisite sliding tackle" with his goalkeeper beaten to deny the opponents a second goal. Bonnart was preferred for the next league match, and Bocaly made just four Ligue 1 appearances before returning to Montpellier on loan in January 2010.