Goalkeeper Tomasz Kuszczak has claimed he is treated like a ''slave'' by Manchester United after a proposed loan move to Leeds was blocked. GettyImagesKuszczak has been with Manchester United since 2006 Kuszczak, 29, was keen to join the Championship side on a deal until January to keep himself in Poland coach Franciszek Smuda's thoughts ahead of next summer's European Championship, which his country will co-host with Ukraine. In comments reported by a number of national newspapers, Kuszczak said: ''I've become a slave to Manchester. I'm frustrated but I don't want to slander or criticise [Sir Alex] Ferguson. It's not my style. ''I've talked to Ferguson recently. I asked him to let me leave the club now, before the January transfer window. I told him