Newcastle United are finally clicking into gear this summer.It's been a turbulent time for the Magpies since the end of last season with their prospective £300million takeover being called off.Overnight fans went from dreaming of being the richest club in England to worrying about a genuine relegation battle.As the summer unfolded it seemed that the latter could be a possibility with Newcastle signing just two players in the shape of Mark Gillespie and Jeff Hendrick on free transfers.Both are solid signings in their own right, but probably wouldn't do much in terms of helping the club to move themselves up the table.However things have since changed quite dramatically.Monday morning saw Callum Wilson complete a £20million move to St James' Park, while Ryan Fraser and Jamal Lewis are set to follow him to the club.p1ehkead6c1t751s661f7r8rp949.jpgThose deals represent significant progress for the Magpies, but it seems that they're not yet done.Reports have suggested that Steve Bruce is looking to sign Rob Holding this summer.Described by Mikel Arteta as 'a really, really good player', the Arsenal man has seemingly dropped down the pecking order under Mikel Arteta, leading to reports that he could be allowed to leave the club on a short-term basis.But while Holding is still a target for Newcastle, Sky Sports reporter Keith Downie has claimed that the move is now on hold as Arsenal look to get their squad in order.

Downie tweeted: "Understand Newcastle’s attempts to bring in Rob Holding are currently...on hold.

"Newcastle retain interest in the player but may have to bide their time depending on whether Arsenal decide to bring in a replacement or not."

GIVEMESPORT'S Phil Spencer says...

This is frustrating for Newcastle United.

It's shaping up to be a good week in the transfer market for Steve Bruce's side who had hopes of completing a deal for Rob Holding.

Unfortunately it seem that this won't be happening just yet.

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With the transfer window continuing for another month or so, it means that Arsenal will be biding their time before making a decision on the defender.

For Bruce it's a bit of a blow as they'd love to get their business done sooner rather than later, but they have to respect Arsenal's wishes.

There's plenty of time to get a deal done, but for now they'll have to be patient.