The Russian oligarch and two members of the Ukrainian negotiating team experienced a temporary loss of vision and painful, peeling skin after a meeting on March 3, according to an investigation. The apparent attack was attributed to Russian hardliners who oppose a peace deal with Ukraine. Abramovich, who was sanctioned by Britain this month as a close ally of Vladimir Putin, escaped Washington after Ukraine asked him to act as a mediator with the Kremlin. Ukrainian President Zelensky said on Sunday that Abramovich, who owns the Chelsea football team, had offered to help de-escalate the Russian attack. Ukrainian MP Rustem Umerov represents Kyiv in the negotiations SERGEI KHOLODILIN / BELTA / TASS The billionaire traveled between Moscow