The 42-year-old spent a total of four years at Old Trafford across two separate spells under Sir Alex Ferguson after developing in the youth academy since the age of 17.
The former Australia international won the Premier League title and Intercontinental Cup with the Red Devils in 1999/2000 before moving to Chelsea in 2001. He made more than 200 appearances in the Premier League for United, the Blues and Aston Villa before returning to his homeland and ending his career at Sydney Olympic in 2009.
The former Red Devils stopper is adamant that rumours of a rift between new manager David Moyes and senior players and coaching staff, namely Ryan Giggs, are not just media speculation but rather based in truth – the Scot has endured a disastrous debut season in charge of the soon to be disposed champions after replacing Ferguson who held his post for 26 years.
"It has been obvious for some time that things are not quite right there. I'm hearing very strong rumours that Ryan Giggs has had a falling out with the management and that is a real shame because that is somebody there with exceptional experience,” explained Bosnich.
"There are things seeping out that things are not well behind the scenes. The fact that a lot of old players are coming out [blaming Moyes], like Paul Scholes, tells me there are definitely problems behind the scenes."
The mood at Old Trafford reached a low this week as United were defeat 3-0 by Manchester City in front of their own fans at Old Trafford just a week after their 3-0 defeat to Liverpool. United legends Paul Scholes and Gary Neville were critical of the team’s performance on Sky Sports during and after the game in midweek with the former questioning the value to the team of Moyes’ £27.5 million summer signing Marouane Fellaini.
The back pages have been filled with speculation that the boss had fallen out with the likes of Robin van Persie, Wayne Rooney, Javier Hernandez, Shinji Kagawa, Ryan Giggs and, more recently, even his legendary predecessor Sir Alex Ferguson – whilst many of these rumours are likely baseless, as Bosnich suggests, there is rarely so much smoke without fire.