Manchester City defender Martin Demichelis has hit out at Manchester United boss Louis van Gaal after insisting that the Dutchman made his former club Bayern Munich 'stink', reports ESPN.
Demichelis endured a difficult relationship with Van Gaal at the German giants and was ultimately shown the door by the manager in the winter transfer window of 2010.
Van Gaal, however, was dismissed himself just a couple of months later, and Demichelis still appears to be holding a grudge against his former boss.
"I achieved a great deal at Munich. I used my strengths to win a place in the first team," Demichelis told German newspaper Bild.
"I became a fan of the club. I felt like a favourite son. But from the first moment Van Gaal arrived at Bayern the place began to stink."
Demichelis, in fact, made 259 appearances at Bayern, before Van Gaal's arrival ended his spell with the giants. And, with Demichelis now at Manchester City, the pair's rivalry looks set to continue over the coming months.
The City centre-half, despite struggling in his early days at the Etihad, starred for the club at the back end of last season as the Citizens went on to win the Premier League title. And he's made a strong start to this campaign, but will have to battle with new signing Eliaquim Mangala for a place in Manuel Pellegrini's side in the coming weeks months.
Demichelis is set to be reunited with Van Gaal on November 2, with the Red Devils set to take on City at the Etihad. The two clubs have dominated English football over the last few years, with the duo having won two titles each in the last four years.
Manchester United, however, endured a disastrous season under David Moyes last time out, and will be determined to get back to their best under Van Gaal. The two clubs are both in action this weekend, with Demichelis and Co. set to take on Premier League title rivals Chelsea, whilst Manchester United will travel to the King Power Stadium to take on new-boys Leicester City.
The Red Devils currently trail Pellegrini's side by two points in the Premier League, but look in better shape after securing their first competitive win of the Van Gaal era against QPR last weekend.