[citation needed] Sadir started his playing career with Nasour Al-Jumhuriya before joining Najaf FC where he progressed through the youth ranks under coach Zuhair Khadim.

Under coach Hemoud, Najaf FC became one of Iraq's most entertaining teams with Saleh Sadeer – and captain Falah Hassan, Abbas Wahoudi, Saeed Muhsin, Ali Hashim and Qasim Jalout.

[3] Sadir played for the Olympic team in the qualifying rounds – his performances compensated for the absence of Nashat Akram in Iraq's midfield.

[citation needed] Before the war, he was named one of the two best players in the 2003–04 season by an Iraqi FA panel and became a regular in Stange's Olympic squad making his debut in the 2–1 defeat to Qatar in the former Oman and Perth Glory coach's first game in charge of Iraq.

[citation needed] He scored an important goal in the 1–1 draw with Vietnam in Hanoi that helped Iraq to progress to the second round.