Dejan Savićević | Dejan Miladinovic | Dejan Despić | Dejan Bodiroga | Harold Dejan | Dejan Vojnović | Dejan Stanković | Dejan Ristanović | Dejan Petković | Dejan Pešić | Dejan Bravničar | Dejan Aćimović |
The most important challenge of the Pole’s career was a fight for the IBF welterweight title which took place on September 4, 2010 Jackiewicz went to Ljubljana, Slovenia to face the champion, Dejan Zavec.