THE German Derby form will be put to the test this Sunday at Hoppegarten, when Royal Youmzain, an unlucky third in the Derby after starting favourite, runs in the Group 1 Grosser Preis von Berlin tomorrow.

Royal Youmzain will be the only three-year-old in the field and faces six opponents, including last year’s winner Dschingis Secret, an own-brother to Destino.