Career
Haidous started playing football for Al Sadd at the age of eight, advancing through the ranks until he reached the first team at age seventeen. He had support and guidance early on from Jafal Rashed Al-Kuwari. He was one of the players to take a penalty kick in the penalty-shootout against Jeonbuk in the 2011 AFC Champions League, scoring after the ball reflected off the top post.
The victory ensured Al Sadd would earn a place in the FIFA Club World Cup as the representative for Asia. In the third-place match between Al Sadd and Kashiwa Reysol, he was again selected to take one of the penalty kicks after the match had ended 0-0. He was voted as the 'Best Qatari Player' in 2014 in a poll conducted by Doha Stadium, receiving 58 out of 104 votes from a panel of analysts, coaches and administrators.