Russian TysonEventsBoxer Denis Boytsov Dies from Detached Blood ClotBoxer Denis Boytsov dies at 40 after Berlin injuryRecent coverage«3 minutes — and it's all over»: cause of death of «Russian Tyson» Denis Boytsov named — РИАМОDid not give up until the end: "Russian Tyson" Denis Boytsov died at 40 — РИАМОDennis Boytsov, the "Russian Tyson", has died — Коммерсантъ"Russian Tyson" Denis Boytsov passed away at age 40 — Вести