Nyorai mberi kweiyi ndima - Mumitambo yeOlympic yezhizha ya2012, de Jager aive chikamu chechikwata cheSouth Africa munhangemutange ye4x400 metres relay
. Mumutambo wekutanga we semifinal, Ofentse Mogawane akawira pasi ndokubva atsemuka papfudzi paakarovera neKenya's Vincent Kiilu, zvichiguma nekubuda kweSouth Africa mumakwikwi aya. South Africa yakapfuudzwa kuenda kumagumo pakukumbira kuIAAF, nekuda kwekupindira kubva kumumhanyi weKenya uyo akadonhedza Mogawane. Vakapiwa nzira yechipfumbamwe uye vakapedza vari pachinzvimbo chechisere nenguva yavo yakanakisa yemwaka ye3:03.46.