Gardner signed a three-year deal with Sunderland for an undisclosed fee, believed to be about £6million, in 2011. Gardner is currently a coach at Birmingham City.Gardner signed a three-year deal with Sunderland for an undisclosed fee, believed to be about £6million, in 2011. Gardner is currently a coach at Birmingham City.
Gardner signed a three-year deal with Sunderland for an undisclosed fee, believed to be about £6million, in 2011. Gardner is currently a coach at Birmingham City.

The 25 most expensive signings in Sunderland's history - and where they ended up: photo gallery

Sunderland have concluded some eye-catching transfers in the modern era – with the club spending millions on incomings.

From Darren Bent to Didier Ndong and Asamoah Gyan, the Black Cats spent heavily over the years, especially when the club were in the Premier League under Bob Murray and Ellis Short.

Here, we take a look at 25 of Sunderland’s most expensive signings and where they are now, with some interesting results! Note: Figures are approximates based on reports at the time of the signings: