MANCHESTER UNITED FANS' CORNER Louis van Gaal says he is surprised by Jose Mourinho's sacking, but admits that Manchester United must start winning after two straight defeats or it will be the 'end of the world' for him as well.Van Gaal's side are without a victory in their last five games, losing their last two against Wolfsburg and Bournemouth ahead of Saturday's home clash with Norwich City.The poor run has heaped pressure on the Dutchman, with Mourinho's sudden departure from Stamford Bridge this week emphasizing once again the perilous nature of football management. Do you really see Man United, sacking Louis Van Gaal even if he keeps them in the top 3?