The former Borussia Monchengladbach player affirmed to News Corp Australia that his time with the Brisbane club is set to come to an end after the club couldn't guarantee him a new contract.
"He (Roar coach John Aloisi) said at this point he didn't know whether he could offer me a new deal and how much he could offer me, so it left me in a really uncertain position," Broich told The Courier Mail.
"While I totally respect that the club has to do what is has to do, I just cannot be in that kind of position.
"I thanked John for his honesty and made my call."
At 36 years-old Broich suggested that his age may may have played a part in the club's decision while stating that he remained uncertain about where he would continue next season.
"I understand about the club going forward. I'm 36 years old so if they want to go for a younger player, then fair enough, I'm not going to stand in anyone's way," Broich said.
"That's just the reality that I have to live with now.
"I'm obviously a bit sad. I've loved my time here, and it's coming to an end. All good things have to come to an end eventually."
Broich joined Roar in 2010, winning three A-League championships and two Premiers' Plates and remains in the chase for his fourth title when Brisbane begin their finals campaign against Western Sydney at Suncorp Stadium on Friday night.
