The defenders couldn’t cope with the Eagles’ attack consisting of Wilfried Zaha, Jordan Ayew and Andros Townsend as they suffered defeat in their opening Premier League match.
Jadon Sancho has been linked with a move to Old Trafford all summer, with the Borussia Dortmund winger rumoured to be valued at around £110 million.
Reports claim that the England forward remains the club’s main priority, ahead of a new centre-back.
Wright admitted that Maguire and Lindelof aren’t at the required level for United, and questioned why they are targeting a new forward without strengthening their defence first.
‘I think you look at Maguire and Lindelof, for me you’ve got to target them now as much as you can,’ Wright told Premier League Productions.
‘People are talking about who Man United might buy, you talk about forwards – at the moment, they’ve got to start focusing on that centre-half pairing.
‘If you get any of those two isolated in any situation, you’re probably going to get something out of it.
‘They’ve got to sort out that centre-half pairing, for me. It’s not good enough at this level for Man United if they’re challenging for stuff. Lindelof and Maguire, not good enough.
‘The fact is, that is not good enough. At this level, with what Man United are supposedly meant to be trying to do, people are talking about Jadon Sancho coming, what’s the point?
‘You’re going to get Jadon Sancho but still have two centre-halves who got absolutely roasted [against Palace] without actually trying too hard.’