Kammala jumla mai zuwa: A watan Mayu na 2011, Mattenet shi ne Faransanci na farko da ya cancanci shiga gasar wasannin Olympics ta London 2012 ta hanyar doke Gao Ning na Singapore don kaiwa wasan kusa da na karshe na gasar zakarun duniya ta 2011. A wasannin Olympics na 2012, ya yi rashin nasara a hannun Chen Weixing a zagaye na hudu. A watan Yunin 2015, ya yi gasa a wasannin farko na Turai, don Faransa a
wasan kwallon tebur, musamman, tawagar maza tare da Simon Gauzy da Emmanuel Lebesson. Ya sami lambar azurfa.