Gary Neville has fired a warning to Manchester United's title rivals by declaring that the Old Trafford stars are in a buoyant mood.

United overcame a resilient Wolfsburg in the Champions League during the week, a win that followed hot on the heels of the Red Devils' 2-0 win at Stoke last weekend.

That domestic success saw Sir Alex Ferguson's men climb to the top of the Premier League table and with Liverpool playing Chelsea on Sunday, Neville claims United's players are in an ebullient mood ahead of Saturday's home clash with Sunderland.

"We've got a good level of belief and strength, and the main thing is that we all stay fit and keep the squad together," Neville told United Review.

"We weren't probably in the right place fitness-wise against Burnley. That game came a bit too quick for us and, for me - that was the reason we lost."

"Since September's international break, we are looking healthier in terms of players having more training and games.

"You could see our attacking flair against City and Tottenham, our resilience against Arsenal and Besiktas.

The performances since we came back from the break have been really good."