In terms of recent FA Cup final shocks, Wigan Athletic’s victory over Manchester City back in 2013 was arguably the biggest since Everton beat Manchester United in 1995.

You could even argue it’s the biggest FA Cup final upset since Wimbledon beat Liverpool in 1988.

Wigan were in the process of battling against relegation while City were challenging Manchester United at the opposite end of the table.

City were able to deploy a star-studded starting line-up at Wembley including Vincent Kompany, Yaya Toure, David Silva, Samir Nasri, Sergio Aguero and Carlos Tevez.

Wigan, on the other hand, didn’t have any superstars. However, what they lacked in star power they more than made up for with determination and work ethic.

And Ben Watson’s goal in the first minute of stoppage time sealed a famous win in the biggest match in the Latics’ history.

You can watch the highlights here...

It was unquestionably a humiliating result for City, whose manager Roberto Mancini was sacked two days later.

Although City’s players underperformed, surely there’s no question they did their utmost to win the match?

Richard Keys has made a controversial claim

However, beIN Sports presenter Richard Keys has made a very controversial claim in his latest blog.

Keys, who previously worked as Sky Sports’ lead anchor, has claimed that City’s players ‘tossed off’ the FA Cup final to ensure Mancini will be axed.

“Look, player-power isn’t a new phenomenon,” Keys wrote. “Ask anybody that was in the Arsenal dressing room when a player poll was organised to see if the lads wanted Bruce Rioch out. We all know what the vote was.

“Ask Roberto Mancini. City’s dressing room tossed off an FA Cup final to be sure they were rid of him.”

Seriously? It’s hard to believe that’s true.

Mancini was sacked due to poor relationships with players

However, there’s no question that Mancini had fallen out with many of his players at the Etihad Stadium by the time of his departure.

The BBC revealed shortly after Mancini was sacked that the Italian was dismissed “for his poor communication and relationships with players and executives”.

Shay Given reveals what life was like under Mancini

Meanwhile, former City goalkeeper Shay Given has confirmed in his latest book that Mancini was an extremely difficult character to get along with.

“Roberto Mancini saw the world differently to Shay Given, that’s for sure,” Given wrote, per the Mirror. “He fell out with everyone.

“And when I say everyone, I mean everyone.

“The players, the back-up staff, the physios, the kitman, the press officers, the canteen workers, the car park lads, the lot.

“He probably even swung a punch or two at his own reflection for looking at him funny.

“Every single morning, he’d sit on an exercise bike and the physio would come to him to report what condition the squad was in. That was the start of World War Three every day.

“The physios would deliver a standard list of who was and wasn’t fit and he would erupt in anger, accusing them of shielding fit players or not working hard enough to get injured players back.

“Tell me, how does that get the best out of people? Life is not meant to be that difficult.

“The maddest thing was, after causing chaos with everybody in the week, I’d then go off to St Pius X Church in Alderley Edge on a Sunday morning and he’d be in there, as devout a Roman Catholic as could be!”