Olsson told the Birmingham Mail: "It's been a frustrating season but I've been given quite a lot of minutes by the gaffer lately, so I feel good.
"My foot feels good and I feel fresh, so I'm eager to go and hopefully I can contribute in these last six games.
"I've been struggling with the injury for two seasons and after the operation it's been much better. Hopefully, I will get even more minutes now.
"You want to contribute and it's been a frustrating season for me personally and for the team, so I want to contribute now.
"I have been in this situation before so I think I have something to offer."