Southampton's amazing start to the campaign as featured impressive displays from attacking summer signings such as Dusan Tadic and Graziano Pelle, but their strength so far has been in defence.
With just six goals conceded in 12 games, manager Ronald Koeman has a stern defence at his disposal, aided by summer additions in Fraser Forster and Ryan Bertrand.
Yet some fans may argue that the biggest addition to the back line has been that of Belgian international Toby Alderweireld, who joined on loan from Atletico Madrid on deadline day.
The 25-year-old was a star in the Netherlands with Ajax, but found first team football hard to come by at Atletico, playing as backup to Diego Godin and Miranda.
However, Alderweireld has so far been outstanding for Southampton, leading to supporters demanding that he signs permanently at the end of his season-long loan deal - but he says he isn't sure what will happen just yet.
"It's a question that is coming up a lot but it's one I can't answer yet," admitted Alderweireld. "First of all, it's not me making the decision, it is Atletico that will decide, then Southampton and maybe other clubs. Only then can I decide if I want to go. So it's not only up to me."
"But I'm very happy here and promise to do everything for Southampton until next year when we will make our decision," he added.
It's reported that it would cost only £6.3m to make Alderweireld's loan permanent, and fans would be hugely disappointed if they missed out on his signature.