A BULLISH Steven Davis has fired a warning to high-flying Manchester United by saying Saints are out to take big scalps this season.

Unbeaten United arrive at St Mary’s in the Premier League on Saturday after an impressive start to the season.

They’ve thrashed three of their opponents 4-0 and scored 14 goals in their five opening games, conceding just two along the way.

Captain Davis is aware that it will be no easy task to stop the United juggernaut.

But he wants the St Mary’s crowd to create a hostile atmosphere and give Jose Mourinho’s side something to think about.

“We’re always going in to these games trying to win. It doesn’t always work out like that, but we’re trying to win,” he said.

“That goes without saying and we want some big scalps this season, we’ve managed to do that in previous seasons and there’s no reason why we can’t do it again.

“Every game in the Premier League, whether it’s against one of the top six or any position in the league, it always has its difficulties. You need to be at your best.

“There’s such fine lines in the Premier League to get results and you just need to go out and get everything right on the day.”

The United game is a sell out at St Mary's and Davis wants the home faithful to help Mauricio Pellegrino’s men to cut down the Red Devils.

Saints previously had a reputation of beating the big sides on home turf, although haven't defeated United in front of their own fans since 2003/04.

“It’s great if you can create that hostile atmosphere,” he said. “It gives the home team such a backing as well, and really pushes them on.

“Not only when you’re winning or when you’re hanging on to the result but whenever you’re trying to get that energy from the crowd. You need that.

“It’s important, though, on both sides of the coin, that the players give the fans energy and on the other side the fans give the players energy and use that.”

The 32-year-old midfielder, who made his 200th appearance for the club in the 1-0 win at Crystal Palace, insists Saints have the belief to make United’s life difficult.

The Old Trafford outfit are a fearsome prospect, having spent around £150m on new players in the summer transfer window.

New £75m striker Romelu Lukaku is in scintillating form, after netting five goals in five Premier League games so far.

“They’ve got such an attacking threat in the final third,” Davis said. “There’s not one player you can simply focus on. They’ve got threats throughout their squad.

“It’s going to be a hugely difficult game for us but we believe we’ve got the quality to beat any team in the league.

“We need to show it now. Obviously they’re playing with a lot of confidence and they’re playing as if they all know their roles within the side - they look very structured.

“It’s going to be a hugely tough game. We’re not underestimating them but we also believe we can cause them problems.

“For us it’s about getting that balance right.”