In 2004 the number of teams were increased from 14 to 16 teams. Foolad of Ahvaz became the first champion from Khuzestan Province after winning the 2004–05 Iran Pro League six points ahead of Zob Ahan. Reza Enayati of Esteghlal became the league's top goal scorer for the second time in his career after scoring 20 goals in 24 matches. He repeated his success with 21 goals in the 2005–06 Iran Pro League when Esteghlal celebrated their first championship since 2001. They defeated Bargh Shiraz in front of over 100,000 fans at Azadi 4–1 and won the league one point ahead of PAS Tehran. Shamoushak Noshahr and Shahid Ghandi (today known as Tarbiat Yazd) relegated to Azadegan League.