Ronald Koeman will not stray from positive tactics against Chelsea

Southampton boss Ronald Koeman has insisted that his side will not stray from their brand of attacking football when they play Chelsea on Sunday.

The Saints have propelled themselves back into the top four in the Premier League with back-to-back wins over Everton and Crystal Palace.

The Dutchman has said that his team want to continue their resurgence with three points against Jose Mourinho's table toppers.

He told reporters: "We know that Jose is always one step in front of everybody. We respect our opponent Chelsea – and they have fantastic football players – but it's 11 against 11 and we try to do everything to win that game.

"We know it will be very difficult, but it isn't impossible and that means we will believe we can win against them.

"Normally, Chelsea are a better team than us, but anything can happen in football. For both sides it's a second game in 48 hours and it's difficult."

Southampton are fourth in the Premier League ahead of their match against the Blues at St Mary's Stadium.