Newcastle United are likely to be busy in the summer transfer window as Eddie Howe looks to bolster his ranks. The Magpies squad was pushed to its very limits last season and they’ll need to increase their strength in depth if they want to kick on. However, Newcastle must also abide by profit and sustainability rules, which means they must be careful in the market or risk points deductions. With that in mind, free transfers could be on the cards. Indeed, the Magpies have now struck gold with regards to one of the Premier League’s most highly sought-after free transfers. On Thursday, Newcastle …