England - South Africa striker Benni McCarthy wants Blackburn to let him leave during the January transfer window.
McCarthy is unhappy at the Premier League club and was booed by Rovers fans after a disappointing performance in Monday's 2-2 draw with Sunderland.
The 32-year-old has also fallen out with Rovers boss Sam Allardyce and admits he is no longer prepared to put up with being called in for extra early morning fitness sessions.
McCarthy believes a fresh challenge at a new club would revitalise his career and allow him to go into next year's World Cup on top form.
"Enough's enough, I feel I've been stepped on too much and it's best I go," McCarthy said in the Daily Mail.
"I feel I'm being singled out unfairly. I wasn't any worse than the other lads, yet I'm the only one on duty from that game (against Sunderland) being asked to come in at 07:00.
"Yes, I admit I've had issues with hitting the weight targets the manager has set and that's my fault, but I put 100% in on the pitch and always try my hardest. It seems I'm being punished more than others."
However McCarthy, who joined Blackburn from Porto in 2006, is keen to stay in the Premier League.
"I'd like to stay in the England. This is a great league," he said. "I'm just unhappy with my situation and need to feel wanted again. I'm not getting any younger but I know I can still make an impact.
"This is a very big year for me. To come from South Africa and have the chance to play for my country in the World Cup is massive.
"I can't risk that by playing the odd game here and there for Blackburn. I need to play and I hope they will allow me to fulfil that dream.
"They got me for next to nothing and they've had a good return with more than 50 goals in about 130 games.
"Hopefully they won't ask an unreasonable fee and let me go when the window opens."