The German has a history of great signings, but he had some recent stinkers.
The Black Cats are hoping to seal a new attacking force this week.
Sunderland have reportedly made an offer for Borussia Dortmund striker Adrian Ramos.
Adrian Ramos looks set to stay with Borussia Dortmund despite Premier League interest.
Crystal Palace are reportedly pushing to sign Borussia Dortmund striker Adrian Ramos.
Borussia Dortmund striker Adrian Ramos is reportedly on the radar of Premier League outfit West Bromwich Albion.
West Bromwich Albion are reportedly eyeing up the Borussia Dortmund man.
There is no Marco Reus, but Arsenal will have to beware Adrian Ramos when they take on Dortmund.
The injury to Radamel Falcao is obviously a huge blow to Colombia, but who will be asked to replace him?
Adrian Ramos will move from Hertha Berlin to Signal Iduna Park this summer.