Borussia newcomer Aller has a testicular tumor

Last season Sébastien made a big noise with Ajax in the Champions League. Eleven goals in eight games impressed the Bumblebees so much that they took him on as a substitute for Holand. The transfer was a record transfer in the history of the club - €31+4 million.

Allaire had a brisk start to preseason with his new team, but yesterday he suddenly complained of not feeling well. Examination. More examinations. Doctors verdict - the 28-year-old player was diagnosed with a testicular tumor.

Sebastien left the Borussia training camp in Switzerland ahead of schedule and went for treatment.