There is still time for Newcastle United to make a major signing this summer, even if their centre-back search is over. The Magpies have been trying to bring in Marc Guehi, but that deal has collapsed. Newcastle have pulled out of a deal to sign Guehi, much to the disappointment of the 24-year-old. Guehi was the only centre-back that Eddie Howe wanted, meaning a defender will not arrive at St James’ Park before the transfer window closes at 11pm. However, there could still be some business. It was reported earlier today that Newcastle are in talks to complete one incoming transfer, while Geord…