Pedzisa mutsara unotevera: 2011 European Indoor champion pa1500m, Arzhakova akambomiswa pamitambo muna 2013 zvichitevera kukundikana kuongororwa kwedoping, mushure mekunge kusagadzikana kwawanikwa mupasipoti yake yehupenyu. Zvibereko zvake kubva muna Chikunguru 2011 zvakabviswa, semugumisiro wekuti akabviswa kubva kune imwe nzvimbo yeEurope kunze uye
Mitambo yeEurope yepasi pemakore 23. Kumiswa kwake kwakapera musi wa 29 January 2015.