Newcastle United would have to reach a settlement with Castore if they were to end their deal with the UK-based sports manufacturers.
The Magpies have ended their agreement with main kit sponsor Fun88 early and are currently looking at options ahead of the 2023/24 season. An exciting tie-in with Saudia ahead of next week's visit to Riyadh will see competition winners get the chance to meet Eddie Howe and the squad during the club's warm weather training camp.
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