Dragan Mladenovic has rejoined Red Star Belgrade on a three-year deal after his Rangers contract was terminated.
Mladenovic had an unsuccessful loan to Sociedad
The 29-year-old Mladenovic agreed an Ibrox pay-off after featuring in eight games in a little over 12 months.
The midfielder joined Rangers from Red Star for £1.2m in July 2004 and was loaned to Spaniards Real Sociedad for the second half of last season.
"I was financially satisfied with the Rangers, but I want to play," said the Serbian international.
But his experience in Glasgow had left him angry with Rangers manager Alex McLeish.
On being released, he said: "I'm an experienced international player, but Rangers have treated me like a 19-year-old. That is what I don't like."
"I've read him saying that he's spoken with me but that was just not true," Mladenovic told the Daily Record. "He didn't speak to me at all.
"At a big club like Rangers, the manager should be able to communicate much better than McLeish does with his players."