Manchester United third-choice keeper Thomas Kuszczak has launched a scathing attack on his team and his manager, Sir Alex Ferguson, after the club rejected his loan move to Leeds United.

The Pole, who has voiced his criticism of United before, attacked the club stating he was treated like a slave and that he was desperate to move elsewhere in a bid to regain his place in the national team in time for the Euro 2012 Finals.

Since his move to United in 2007, Kuszczak has been used as an understudy, first to Edwin Van Der Sar, who retired at the end of last season, and now to David de Gea and Anders Lindegaard. In fact, he is yet to make an appearance for United this season, with youngster Ben Amos featuring in the Carling Cup.

United blocking his loan deal to Elland Road seems to have finally touched a nerve, as the 29-year-old launched a scathing attack on Sir Alex and the club as a whole.

Do they do it maliciously? said Kuszczak, in response to his loan deal being called off. I'm sad they behave like that. I've become a slave to Manchester.

I've spoken to Sir Alex Ferguson recently. I asked him to let me leave the club now, before the January transfer window.

I told him I want to play and get back into the national team, because Euro 2012 is just around the corner, but it seems he doesn't care. The possibility of two months loan to Leeds United came two weeks later. The club blocked it.

It was a gleam of hope for me. I would have reminded the Poland manager. But I didn't get the club's approval.

It is beyond doubt that the Pole's days as a Man United player is numbered, but attacks such as these are unlikely to help his cause.