SIR ALEX FERGUSON believes the "unethical" sacking of Mark Hughes' by Man City could help trigger a collapse next week that will open the Barclays Premier League title door for Manchester United.

Although the reigning champions beat Swansea City 2-0 at Old Trafford, thanks to goals from Paul Scholes and Ashley Young, the margin of victory was not enough to suggest they will be able to overhaul City, who triumphed 2-0 at Newcastle, on goal difference on the final weekend.

Instead, they will go to Sunderland hoping relegation-threatened QPR, who are now managed by Hughes, can pull off a massive shock at the Etihad Stadium.

Ferguson said: "QPR need a point and they're fighting for survival. But Mark knows his job all right. He was sacked by City in a very unethical way and he'll remember that."

And that could contribute to a collapse as dramatic as the one suffered by Devon Loch in the 1956 Grand National when he looked to have won with ease.

The Old Trafford boss added: "We've won the title on three occasions on the last day and we don't mind doing it again."