Jose Mourinho's time at Manchester United was, shall we say, controversial.
In his two-and-a-half years as manager the Portuguese had numerous bust-ups with his players and regularly slammed them in the media.
Paul Pogba, Alexis Sanchez, Luke Shaw, Anthony Martial and Eric Bailly were all on the receiving end of a Mourinho rant at some point and, understandably, they weren't very happy about it.
Mourinho also clashed with United's chief executive, Ed Woodward, on several occasions over the club's transfer policy and cash made available to him.
In the 2018 summer transfer window, for example, Mourinho and Woodward's relationship hit an all-time low when a deal wasn't made for Tottenham's Toby Alderweireld.
With Chris Smalling, Phil Jones, Eric Bailly, Marcos Rojo and Victor Lindelof his options at centre-back, Mourinho felt he needed a world-class signing to shore up his defence.
But Woodward said no, which infuriated Mourinho and the 'Special One' made his feelings very clear in press conferences and interviews.
From the outset Mourinho has made controversial decisions and one of them was allowing Ryan Giggs to leave when he took over.
According to reports at the time, when Mourinho replaced Giggs as manager, the Welshman felt United had gone back on their agreement to give him the job.
Giggs was said to have been offered a reduced coaching role by Mourinho but said no because it wasn't what he wanted.
That's where it ended, but now the Times' Paul Hirst has made a pretty incredible claim about why Giggs really left United when Mourinho arrived.
Hirst says Mourinho refused to work with Giggs because he didn't trust him after he had an affair with his brother's wife.
In Hirst's words: "Woodward was keen to keep Giggs on, but Mourinho vetoed the idea because he did not think the Welshman was a man he could trust because of his extra-marital affair with his brother's wife."
This is bound to open a can of worms. Giggs' actions had nothing to do with football, but clearly Mourinho judged him for it and that's why he didn't stay.