Jose Fonte has hailed the arrival of his new centre-back partner, Dejan Lovren, after the two have conceded just two goals in four games.
It was a well-known fact that Southampton needed to strengthen their defence over the summer, and Pochettino acred upon this with the £8.5m signing from Lyon.
Saints conceded 60 goals last season - one of the worst records outside of the bottom three.
They also struggled to field the same back four conistently last season, with Jos Hoiveld and Mayo Yoshida being regularly rotated along with Fonte.
Fonte told the Daily Echo: “We’re very pleased, obviously. It was an issue last year.”
“We’ve got two clean sheets this season, which is very good for us, and it gives us confidence and more belief to keep working hard, as we’ve been doing.
"He's (Lovren) a great player first of all, and when you have a great player next to you it's easier to play."
"I feel confident with him, we understand each other well. It's always going to get better, because we're still getting to know each other, but from the first moment I had a good understanding with him."
"I know more or less what he’s going to do in each situation, and he knows what I'm going to do, so at the moment we're in a very good place and I hope this partnership keeps developing and improving."
Fonte lost his place in the Saints side last season, after suffering a nasty knee injury against Chelsea in the FA Cup back in January.
But the Portuguese centre back has re-emerged as Pochettino's first-choice alongside Lovren this year.
“I’m pleased, because I believe in myself,” he said. “I got injured against Chelsea when I was the only player who played every single game and was out of the team for eight games."
“When you come back the players have been doing well, we won a few games against Man City and good teams, and it’s normal the manager keeps playing with the same team."
“I waited for my chance, I played the last few games of the season, I did well, I had a great pre-season and I worked very hard, and the manager put his trust in me and I just want to pay it off, play well for the manager and the team.”
Saints will now be hoping that they can add to their defensive stability with some firepower up front. New signing Dani Osvaldo has struggled to find the next in his first three games, and Southampton will be hoping that their striker will start firing in the goals.
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