Newcastle United need to sign at least one centre-back this summer, and have now identified their top target. The Magpies already had plans to buy a new central defender when the transfer window opens, but their need only intensified when Sven Botman went down with an ACL injury that could rule him out for the rest of 2024. And now it is absolutely essential that another centre-back joins the club after Jamaal Lascelles suffered the same fate. He sustained an ACL injury during the 4-3 win over West Ham, and could also be absent for the rest of the calendar year. PSR issues impacting Newcastle’…