#2 Manchester United: Centre-Back
The pressure is on Manchester United this season - especially Jose Mourinho. After taking over in 2016, he has won only two Tier 2 trophies - a League Cup and a Europa League. While the latter allowed them to return to the Champions League, it hasn't been plain sailing since.
They were upstaged by Manchester City in the Premier League last season while Chelsea beat them in the FA Cup final to leave the Red Devils trophyless. Tasked with bringing back the glory days of Sir Alex Ferguson that ended five years ago, Mourinho is yet to find the right combination that clicks.
United had the second-best defensive side last season. But the reason they finished second was that they conceded goals in crucial moments. While David De Gea was at his supreme best yet again, it is his central defence that will concern Mourinho who has enough attacking players at his disposal to not worry about goals.
With Eric Bailly's injuries behind him, he needs a suitable partner beside him. Chris Smalling is on the decline (he didn't even make England's World Cup squad) while Phil Jones has been frustrating.
Victor Lindelof could get a few more chances, especially after impressing at the World Cup with Sweden but with Mourinho looking to sign either Toby Alderweireld or Harry Maguire, it seems certain that he wants a world-class, no-nonsense defender to partner Bailly in central defence.
And he needs one if he is to seriously compete for the title.