Bellaïd was subsequently promoted to the senior squad for the 2005–06 season. He proceeded to make his Ligue 1 debut on 17 September 2005 in a match against RC Lens coming on as a substitute in the 70th minute. The match ended in a 1–1 draw.
Bellaïd was subsequently advanced to the senior squad for the 2005–06 season. He proceeded to make his Ligue 1 debut on September 17, 2005 in a match against RC Lens coming on as a substitute in the 70th minute. The match ended in a 1–1 draw.