It is perhaps the worst kept footballing secret around at the moment that Alexis Sanchez is off to Manchester United.

The Arsenal man was supposedly on his way to the Red Devils' noisy neighbours City, but his financial demands and dressing room reputation meant that Pep Guardiola's side bowed out of the race.

This has allowed Jose Mourinho and Ed Woodward to put together one of the most astounding deals in Premier League history, with Sanchez set to be offered £500,000-a-week before tax.

His potential salary dwarfs the ones handed out to Paul Pogba, Kevin De Bruyne and Eden Hazard.

It was no secret that Sanchez had his heart set on City, with a Guardiola reunion supposedly high on his priority list - the two worked together to great effect at Barcelona.

But, clearly money has spoken and Arsenal legend Martin Keown has summed up the situation perfectly.

KEOWN GOES ON THE OFFENSIVE

“Sanchez has got to be the biggest mercenary in football,” Keown wrote in the Daily Mail.

“Manchester City have wanted to sign Sanchez since the summer and, if no deal is done in January, they will be waiting for him at the end of the season.

“City would be the natural place for Sanchez to go to develop his football. He has worked with Pep Guardiola before.

“But for Sanchez, this is clearly not about going to the best team, working with Guardiola and taking his game to another level.

“He has probably thought that he will not get a better offer if he waits until the summer, so he might as well take the best deal on offer now. It has been all about the money.”

The biggest mercenary in football? He might just have a point you know.

Arsenal were prepared to give him an enormous wage increase but clearly, he was aware that the real riches were in Manchester.

With the Sanchez saga hopefully drawing to a close, the Gunners can hopefully switch their attention to extending both Mesut Ozil and Jack Wilshere's deals.

According to reports, both are keen on staying and with the addition of Henrikh Mkhitaryan, things may not look so bad for Arsene Wenger's side.