Albert Streit has reacted angrily after being told that he is no longer part of Schalke's first-team squad.
Streit, Peter Lovenkrands and Carlos Grossmuller were told over the weekend they would not be considered for Bundesliga action for the rest of the season and would have to train with the reserves.
Streit has now hit back at the club, slamming the treatment he has received since arriving from Eintracht Frankfurt last January.
"I have done nothing, and they are telling me on Sunday that I am surplus to requirements and do not have the right to change clothes in the locker room. That's just about the limit," the midfielder said in an interview with the Frankfurter Rundschau newspaper.
"I have lost the joy to play football at Schalke. I have always been ignored and given the go-by since joining from Frankfurt."
Streit is keen to play more regularly but admits it could be difficult to resolve the dispute quickly.
Speaking about the prospect of joining another club on lower wages, Streit said: "I have forwarded the issue to my agent Klaus Gerster.
"We will now decide how to go on, but I am clearly getting into a dispute. I still have three-and-a-half years left on my contract and I am paid well, but being a professional footballer has always been my dream.
"If I am not able to be a professional now, this would be quite bitter. But there are worse things in life than being sent to reserve-team football."
Former Rangers winger Lovenkrands, meanwhile, is reviewing his options and admits he would welcome the opportunity to head to the Premier League.
"I would rather try England," he told Ekstra Bladet.
"I have always dreamt of playing in the Premier League, that is of course my first priority.
"I have nothing on the table yet. I told my agent to only contact me when there is something serious.
"You never know, but I don't think it will be Scotland right now."