Larsson’s side lost the play-off 3-2 on aggregate, despite Jordan putting them 2-1 up on aggregate with just eight minutes of the second leg remaining.
The late flop sparked fury when Larsson Jnr was seized upon by pitch invaders. The louts attempted to rip the shirt from his back before Henrik entered the fray and prepared for a battle.
Security managed to usher the hooligans off the field, but the Helsingborgs boss and his squad were visibly shaken.
Police had to lock Larsson and his players inside the Olympia Stadium dressing room for their own safety as they dispersed the mob and the ex-{arkhead favourite admitted life may have changed forever.
He said: “I’ll have to look one extra time over my shoulder. I guess I can’t go out alone so much in the future.
“I have plenty of dogs at home, it’s no problem.”
Larsson was fuming at the attack on his son and said: “Eight or nine minutes before the scuffle, they rejoiced at his goal.
“It is important for the club that we identify those who were on the pitch. They will not come here again.”
“But I was not going to run.”