Southampton manager Mauricio Pochettino feels his side's surprise win over Manchester City was the result of hard work and the belief within his squad.
The Saints saw off the defending Premier League champions 3-1 at St Mary's stadium to mark Pochettino's first victory as manager since he replaced the sacked Nigel Adkins last month.
The Argentinian says teams can only win if they have belief and feels it was abundant in his hard-working Southampton side on Saturday.
He told the club's official website: "Victories only come if you believe you can get them. Everyone here at Southampton has belief.
"The key is all of the work we put into it and the work that we've put in for all of the matches.
"Today we've seen it again, and the result has come to us too.
"I have said before in the other matches against Everton, Manchester United and Wigan that we played well but didn't get the points that we deserved. Today we played well and got those points that we deserved."
Argentinian Pochettino's arrival at St Mary's was met with hostility from some Southampton fans following Adkins' shock dismissal but the boss was full of praise for the home support after the win.
He added: "We're all very happy. I want to thank the supporters for the great support they gave us today.
"I have said many times before that I was very well received here, I have had a great welcome and I am very happy with the supporters, all the staff and the players that are here."
Luke Howell's 56th minute strike proved to be the only goal and ended an impressive five-game unbeaten run for the Robins.
"I'm disappointed because I really thought we deserved something out of the game," reflected Yates.
"We could have done better for their goal but then we had enough chances to get something. I thought we played well in patches but we also needed a bit more quality.
"It was always going to be hard coming here because they're battling hard, but we didn't do the basics well enough."
Second-half goals from Kelvin Langmead and top scorer Adebayo Akinfenwa, his 16th of the campaign coming from the penalty spot, took the Cobblers back into the play-off places after Jason Kennedy had cancelled out Clive Platt's first half opener in Saturday's 3-1 victory over Rochdale.
It was just the response Aidy Boothroyd's side needed after two successive defeats on the road.
"At home the players have a belief they are always going to win and so I always thought we'd get back in front after they equalised," said King.
"But we must start to have that same belief away from home. All we need is that away win, I don't know why we can't do it away but it's all about confidence.
"Rochdale are a good footballing side but I didn't think they caused us too many problems apart from the goal.
"They started well but we contained their threat by not conceding and that was satisfying. We got the goal at the right time and once they equalised we did well to get back in front so quickly."
