First, Axel Kouame went off in the first half.
During the break, central midfielder Amel Mujanic was next to throw in the towel. Nineteen-year-old Linus Järeteg came on.
The second half had barely kicked off before AIK's Taha Ayari sat down on the artificial turf and grimaced in pain. Three injured players had been substituted after just over 50 minutes of play for the visitors.
However, a battered AIK defended well and, despite Häcken's dominance, were able to take a point back to Stockholm.
The draw means that Häcken climbs above Djurgården into third place in the table. AIK is sixth.
