"I'm almost back in full training now and it feels very good," Iversen told the Spurs official website.
"I had a minor setback last week but everything is fine again now.
"We'll wait and see this week to find out if I can get through all the sessions - it would be a major step for me.
"It is important that the back gets a lot of rest inbetween those sessions and I must do the right things during those times.
"This week will be a big test for me, if it goes well it should be alright."