Southampton boss Mauricio Pochettino insists they're capable of pulling off a shock against Manchester City.
Pochettino is going to attempt to starve City's attacking three of Sergio Aguero, Carlos Tevez and David Silva of the ball to give his side a chance of winning the game.
And the 40-year-old said: "It's obvious that Aguero, Tevez and Silva are great players. We know we have to stop the players passing balls to these three.
"We know any of these three can decide the match at any time during the match. We have to stop the ball getting to them."