Iversen was only given international clearance hours before the clash against the npower Championship's bottom club, then headed the winner in the 58th minute.
The 34-year-old former Tottenham striker arrived from Rosenborg on a free transfer and only had two training sessions with his new team-mates.
"Steffen was brilliant," Freedman said. "I knew he would tire but he was around the last three or four days and as a leader around the group he had to start - and I thought he was fantastic for us."
Source: PA
Source: PA