The British and Commonwealth king was recently made mandatory challenger for the WBO title and Groves has now confirmed he will face Stieglitz at the Messehalle in Erfurt.

Speaking on Twitter, Groves said: "Is fighting for the WBO Super Middleweight Championship of the World!!!!!!! ... And your (sic) all invited!"

The 24-year-old has been absent from the ring since November as he was forced to pull out of a fight against Kenny Anderson due to a back injury.

But Groves has already fought in Germany and America during his unbeaten 14 fight career and is unlikely to be concerned about facing Stieglitz on his own patch.

Stieglitz had made five successful defences of the title, but he has been stopped twice in 43 fights.