The arrivals of Nick Pope, Sven Botman and the permanent addition of Matt Targett means Newcastle will have to sell players this window.
Isaac Hayden and Freddie Woodman have already departed the club, but more is needed if Newcastle want to avoid having a bloated squad.
Last summer saw 16 players leave the club either on-loan or on a permanent basis, so what can we learn from their departures and will the crop of players leaving the club this summer fare any better?
With that in mind, here, we take a look at what happened to the 16 players that left Newcastle United last summer and how they fared since their respective departures.
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5. Lewis Cass: Port Vale
A regular at either wing-back or as part of a back-three, Cass impressed whilst at Port Vale, however, his season was cut short when he suffered a season-ending ankle injury in training last month. He then returned to Newcastle to rehabilitate his injury before rejoining Vale earlier in the summer, this time on a permanent basis. Photo: GEOFF CADDICK
6. Rodrigo Vilca: Universitario
The Peruvian joined League One strugglers Doncaster Rovers on-loan in the summer, however, despite Nobby Solano comparisons, he managed just one league goal before returning to the north east in January. He then moved back to his native Peru to join Universitario on-loan. Photo: Charlotte Tattersall
7. Matty Longstaff: Mansfield Town
Longstaff endured a difficult time in Scotland whilst on-loan at Aberdeen and returned to Newcastle in January having featured just five times for the Dons. He then joined Mansfield Town on-loan and helped guide them to the League Two playoff final. Photo: Ian MacNicol
8. Oisin McEntee: Walsall
McEntee joined Greenock Morton on-loan last summer and became a fairly-regular part of their side. McEntee was released by the Magpies earlier this summer before joining Walsall. Photo: Jordan Mansfield