​Newcastle United fans have been reacting on social media to speculation former boss Sam Allardyce could make a sensational return to St. James' Park this season, if Rafa Benitez leaves the club.

After yet another summer of potential boardroom Tetris, the Magpies have remained under the ownership of Mike Ashley, as the Sports Direct owner adds House of Fraser to his business portfolio.

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Despite Ashley himself spending in excess of £90m for the acquisition of the high street clothes retailer, ​Newcastle continue to be restricted in their transfer budget, that has seen just loan additions of the likes of Salomon Rondon, with just fellow striker Yoshinori Muto and defender Fabian Schar coming into the club for fees in the close season.

Benitez's further unrest and an opening day loss to ​Tottenham Hotspur last Saturday, has led to further talk that the Spaniard's time on Merseyside could be dwindling.

Should the former ​Liverpool boss vacate his seat at the club, the ​Independent speculated that Allardyce could ride to the Magpies' rescue, and fans have been quick to state their feelings on the matter.

Some feel Allardyce's return is inevitable with the former England head coach currently unattached.

One fan is even certain.

And for some, the thought is too much.

Having led the Magpies between May 2017 and early Janaury of the same season, Allardyce curried little favour with fans of the Gallowgate winning just 20% of leagues games that campaign under the Dudley native's tenure in the north east.

Despite being openly criticised by the ever-vociferous fanbase, it was argued that Allardyce was not afforded enough time to turn the club's fortunes around.

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For Benitez, who took charge of Newcastle in 2016 - leading the Magpies at both top and second tiers of English football - the 58-year-old from Madrid continues to have his hands tied, to the detriment of club success - or so it seems.

Speculation has again reared it head that Benitez could bring an premature end to his stewardship at St. James', which could see Allardyce installed for the second time by owner Ashley.

It could be another long season on Tyneside.